Lwc queryselector by class Nov 16, 2024 · That Strike component gave me a great idea. However since in your example you also had a parent element which you are able to retrieve by id, you could also use this instead. If I do console. Nov 18, 2024 · New to LWC and Jest -- and trying to write a succinct test on a component with multiple lightning-input elements. querySelector("[data-id="+targetRecordId+"][name=inputA]"); and do something like getting its value. querySelector([ID]) will return null in connectedcallback as the element has not been rendered in the DOM yet. html <templat Using the disabled property of the textbox, you can enable/disable the button in LWC. querySelector('. Try to add your child component to the markup of the parent one, and query it like You need to understand the philosophy behind react-testing-library to understand what you can do and what you can't do with it;. this, template, querySelector are all guaranteed to exist and not be undefined within a renderedCallback. However the custom component c-datatable seems to be making use of its own method @api getSelectedRows rather than the native method You cannot create/use innerHTML for custom components (c or lightning namespace) in LWC but you can do so for native elements. var filter = Array. sign, it should work fine if you remove the spaces :. I have an LWC as a quick action in Global Actions. Fig:7 — Style the base LWC Button. I left everything the way I had it, but added event. 6. How to process <String, customwrapper class> in LWC js file. I'm building string selectors to be used in Selenium and usually I just inspect the element with Firebug, and use document. Follow answered Sep 4, 2022 at 12:01. Oct 10, 2024 · After you’ve written the LWC component and Apex class, it’s time to deploy them to your Salesforce org. That is outside lightning record edit form. querySelector("#1") I'm just curious why using numbers as IDs does not work querySelector when the HTML5 spec says these are valid. A well-designed modal with a customizable header enhances user experience Tour Start here for a quick overview of the site Help Center Detailed answers to any questions you might have Meta Discuss the workings and policies of this site So change your querySelector to: but this is specific to LWC. ; And finally: It looks like some state info is lost on document. In web development, a component’s lifecycle represents the various stages it undergoes, from creation to removal from the DOM. querySelector in LWC In Lightning Web Components (LWC), direct DOM manipulation is typically avoided. A wire method is executed, and in the data block I execute another method which performs a querySelector on a div. querySelectorAll(". querySelector for elements inside an iframe. New neuroscience says yours probably should too. Commented Mar 6, 2019 at 22:20. If I try do the following I get SyntaxError: DOM Exception 12 in the console. lightning-input is Customized built-in element. Method -2 : Don’t override SLDS classes directly, as shown in this example, because SLDS classes and base component internals can change in future releases. asked Dec 8, 2015 at 23:52. But I getting border for second navigation box too eventhough it don't have a class. Example I am trying to remove the 'hide' class from the anchor tags. out . out. 351 1 1 gold badge 4 4 silver badges 15 15 bronze badges. popover')) I see that the target property of What I'm looking for is a document. Add and Remove Styling Upon Button Click In You can use a utility class to change the background but options are limited list of utility classes. I just wrote this short script; seems to work. If you use A couple of things: First of all, your selector needs to be select and not . four') This will match the first child element (of any parent) it finds that is a span and also has a class "four" set to it. I have a custom submit button. Steps to execute. Javascript querySelectorAll and :not Selector. app. querySelector('[data-id="sidebar"]');" to find a UI element with data-id=sidebar. ; selectors is a string containing one or more CSS selectors separated by commas. out"). JS. But those multiple conditions don't work. * @param {RegExp} regEx regular expression to match against tagName * @returns {Array} elements in the DOM that match */ function getAllTagMatches(regEx) { return Array. Id + '"]'); Is that item must be undefined. Why would you want to "filter" the result of querySelectorAll() which infact, is some kind of a filter itself. I'm trying to query inside an iframe. querySelectorAll('. How to Use template. Commented Feb 10, 2021 at 13:49. prototype. js is a popular Author Virendra Sharma. However, there are instances I want to set the css class based on the record data for the specific card and not the same class for all the cards so I'm not able to make use of getter here, as there's no way I can pass record d Good question. Create the LWC Component HTML File: modal. querySelector(". – Alex88. As far as I can tell, from a lack of documentation, you can't specify an anchor target. One of the commonly used components is the lightning-radio-group, which allows users to Jul 31, 2021 · public with sharing class EventActivities_Ctrl { @AuraEnabled (cacheable=true) public static void updateEventActivityCheckboxTracker(String siteSurveyId, String Nov 17, 2024 · Basically I want to get the element using jQuery function by element class name. class_name") to get the first element with the class_name CSS class (null will be returned if non of the elements on the page has this class name) or document. I'm writing a lightning web component in which I have to assign a <datalist> element to one of my <input> elements' list property, in order to bind them. If you haven’t read it yet, I recommend giving it a quick look to understand the foundational concepts of Shadow DOM in Lightning Web Components (LWC). querySelector('#input-576') in the console it returns null. Using querySelector exclude elements whose id's include a specific string. child . Sign up. forEach(function(el){ el. querySelector("div. Stack Exchange network consists of 183 Q&A communities including Stack Overflow, the largest, most trusted online The Element. querySelector() where “template” is the root node in LWC. I am resizing the width of the below div from 1112px to 752px through CSS animation, when it reaches 752px I want animation on another element to begin. You can bind the class to a grid node property and only define that property on the row you want to highlight (see above code Sep 2, 2024 · Salesforce Lightning Web Components (LWC) have revolutionized the way developers build modern, efficient, and dynamic applications on the Oct 6, 2024 · When developing in Salesforce using Lightning Web Components (LWC), you may encounter scenarios where you need to retrieve field values Sep 2, 2022 · You need to use lightning-input with a data-(data-"something-you-want-attribute") attribute in your querySelector. How to prevent CSS/JavaScript on specific selectors using Id? 0. question_answer:not([id=answer_a])"); document. When the form is Approved I would like to allow Users to view, but lock all fields from edit. one. querySelectorAll and then you'll have to loop reach element and work with each element inside the loop. Nathan Hinchey . Parent Component <template> <lightning-card title="Case Reason"> I'm using the following in Javascript functions in LWC "var uiSection = this. How can I achieve this in LWC? lightning-web-components; jquery; Share. The Sep 13, 2021 · I'm using the following in Javascript functions in LWC "var uiSection = this. If you query for div span or even better #id div, those results are already filtered, no ?. filter(function (el) { return let targetEl = this. first-class"); let secondClasses = firstClass. four') This article continues from Part 1. querySelector('* > span. out inside . The goal behind react-testing-library is for the tests to avoid including implementation details of your components and rather focus on writing tests that give you the confidence for which they are intended. But not sure if this is valid approach - somebody from LWC development team can confirm. Oct 1, 2019 · You cannot create/use innerHTML for custom components (c or lightning namespace) in LWC but you can do so for native elements. querySelector('lightning-input'); el. sign . sign. querySelector('#test > span. ; element is the DOM element matched by the first selector. The first time I open the quick action LWC, the querySelector is performed successfully. Share. If it doesn't support querySelector, the previous test could fail. Please be aware that using className = "" will result in all classes being removed. Example In LWC there are multiple ways to dynamically set values to custom or standard components. Ideally, you want to setup a getter to retrieve the updated value once a percentage attribute has changed. Now the :scope pseudo-class has been introduced. className = "show"; I'm populating the data-id attribute on input type with record specific value to differentiate where the click occurred. No it cannot. In this example, this. Unfortunately When I do document. The flicker you're talking about is a completely different issue than this question. Vitalii Dec 11, 2020 · let firstClass = this. parent") Solution: For those which were struggled as well. second-class"); secondClasses[2]. They have the followed name: 'c-lwc-Component', 'c-lwc-Search', 'c-lwc-Product' I was thinking of using this When working with Lightning Web Components (LWC), developers sometimes encounter issues where document. May 23, 2019 · 大部分人在使用selenium定位元素时，用的是xpath元素定位方式，因为xpath元素定位方式基本能解决定位的需求。xpath元素定位方式更直观，更好理解一些。css元素定位方式往往被忽略掉了，其实css元素定位方式也有它的价值；相对于xpath元素定位方式来说， In this example, querySelector is used to find the first element in the component’s template that has the class my-button. Edit: Note that this is in violation of @lwc/lwc/no-async-operation. I have used the following pattern, which works fine -- I get a passing result: let When developing Lightning Web Components (LWC), developers often use this. Unable to add class to table rows using querySelector. Improve this question. If you use Nov 16, 2024 · Below I am Trying to Return an Instance of a Class to a LWC JS to then handle and display to the End User. I am able to successfully call the Apex Class and Method and return data, but the data is empty/Null. ; Some example usage: // Select by element type Oct 8, 2024 · template. call(document. How to exclude an Element (via ID) in CSS. Prashant Pandey · Follow. 11. my-class. classText Apr 10, 2020 · I want to get the width of an element in js and based on that width want to perform some animations. So querying element by Opening subtabs in Salesforce Lightning Console is a powerful feature that enhances navigation and improves productivity. filter to the static result of querySelectorAll like follows:. 0. 2. Here i use template literals approach. Check out demo on changing CSS Class in Lightning Web Component playground:- Lightning Web Component The . Though icon and label are getting changed. slice. To access elements rendered by a component with standard DOM APIs, use querySelector() with this. The DebugElement offers query methods that work for all supported platforms. getListOfWords()); This will let your method do its thing immediately after the render cycle. if there are changes to lwc components that could affect how they are rendered, this can "break" your query selectors. I have used the following pattern, which works fine -- I get a passing result: let Dec 25, 2021 · I am having trouble printing class name using querySelector() instead it is printing whole element. querySelector to interact with the DOM elements within the component’s template. class_name") to get a NodeList of elements with the class_name css class (empty NodeList will be returned if non of. In this document. With a decade of experience in eCommerce technologies and CRM solutions, Virendra has been assisting businesses across the globe to harness the capabilities of information Oct 8, 2024 · Lightning Web Components (LWC) in Salesforce provide a modern and efficient way to build user interfaces. test') or document. If querySelector matched nothing, element would be null. Jeff Bezos’s morning routine has long included the one-hour rule. Can you explain how querySelector is scoped in LWC and why it’s important? Answer: In LWC, querySelector is Oct 6, 2020 · It is not the prettiest way but below I have provided a example with comments for details. Deploy the downloaded “showContactsPanel” LWC with Apex Class. value = 'Some Value'; Nov 17, 2024 · Read my blog post: Access DOM Elements with LWC Refs Original Answer You cannot stop that, also it's not recommended to manipulate DOM elements based on id , as the framework replaces custom id to a globally unique id in the page. setAttribute method on DOM element doesn't seem to work. I've done quite a bit of Googling for an answer and finally I'm stumped. Lifecycle hooks allow developers to interact with a component at You can use querySelectorAll to select all element with a class repoFolter and loop through each element and append the eventListener. paddingBottom = ; But beware that if you change your page, In my LWC form I have multiple lightning-tabs containing several lightning-input-fields. Call these methods differently depending on whether you want to access elements the component querySelector() is a versatile DOM querying method that makes selecting, storing, and manipulating elements easy in LWC. Before the Summer 2020 release, there was only one way to select the child element, which is The querySelector method is utilized for selecting an element, such as div, span, input, or any tag within an LWC component. 2 min read · Oct 14, 2019--Listen. based on a data-id or another attribute). getElementById() doesn't work as expected. Before the Summer 2020 release, there was only one way to select the child element, which is Lightning Web Components (LWC) is a modern framework for building Salesforce applications. So your final code should be something like this: Defining addClass outside of I have a parent component, which contains 2 re-usable components. querySelector(`[data-id="${targetId}"]`). querySelector('article[data-id="' + item. I understood that the method would return null when the element doesn't exist or the first element when it does, but this contract is not being respected. popover') an empty object is being returned. Based on the selection of a radio button, I would like to toggle the read-only attribute of lightning-input element. querySelector to change the name of the class of an element. console. Below is the detailed explanation. querySelector("h3"). addEventListener('click', rootFolder); }) function rootFolder( ){ I don't think I get the question right. However, there are cases where accessing or modifying Jan 30, 2023 · QuerySelector will not work on the name attribute as lightning-input tags don't have the name attribute, the internal input tag has the name attribute which is not accessible due to the LightningLocker. Commented Dec 16, LWC component authors control whether or not the attribute you set in your template "reflects", or "is rendered" in the DOM, but they must make an active decision to do so. repoFolder'); elements. postMessage('hello world', '*'); } } Note that arrow functions keep their this reference to the class. 1. import { LightningElement, track } from 'lwc'; export default class App document. Be careful to avoid modifying anything that will call startGameHandler again, or you'll run into an infinite loop. select ; An easier way to set the selected option is to set the value on the <select> element itself. One of the core elements used in LWC is the <lightning-input> component, which provides a CSS doesn't have a syntax for that (see the selectors spec here). how to use trim in js document. class or tag using querySelector in the js file to set disabled property, it never works. this. scrollIntoView(); You can basically use any valid CSS selector to find a specific element (e. In this guide, we will explain how to use Lightning Web Components (LWC) to This article continues from Part 1. var elements = document. log(this. Due to the power of defaults, aside from a small Tour Start here for a quick overview of the site Help Center Detailed answers to any questions you might have Meta Discuss the workings and policies of this site import { LightningElement } from 'lwc'; export default class App extends LightningElement { toggle() { let el = this. querySelectorAll("theStringIBuid"); But it doesn't In this example, querySelector is used to find the first element in the component’s template that has the class my-button. onclick = function(e) {} keep in mind that querySelector will return the first match, so a comma in the Hello guys I would like to use querSelectorAll() to select all of my child components. getElementsByTagName() and Element. . I haven't used LWC so can't comment on that, but it would be Very Weird Indeed if they made template not a template. Style Components with Lightning Design System. I tried multiple browsers. Oct 14, 2019 · Dynamic CSS in LWC. If you want to select a You can combine two selectors together in a single querySelectorAll like this: ALSO you need to use another data attribute - shown above as data-name, because the name From the documentation of LWC, it is clear that we can use only querySelector and querySelectorAll for getting/selecting element(s) and that we cannot use ID selectors because In this post, we are going to look at two new methods in the Lightning web component framework. So, you I have two navigation boxes where first one has a CSS Class . const selectedParentFromChild = document. When I call this. template in LWC. For some reason, this JS line: @plugincontainer - No, you wouldn't. querySelector method. Commented Feb 10, 2021 at 13:45 @Alex88 - template is a standard HTML tag/element. I have a parent component, which contains 2 re-usable components. Rahat Saini Rahat Saini. Tour Start here for a quick overview of the site Help Center Detailed answers to any questions you might have Meta Discuss the workings and policies of this site Here is the basic syntax: const element = context. querySelector uses CSS Lightning Web Components (LWC) is a powerful framework in Salesforce for building modern web applications. If you want to access the lwc tags, I suggest you use the Sep 25, 2020 · For this, by default i kept the button class as slds-button_neutral on click of any of Skip to main content. How can I use both data-id document. Follow edited Nov 20, 2019 at 20:45. Now, if I want to hide the button, I'll have to use a similar statement, but I need to still use data-id attribute value. You can query based on an attribute starting with X, but class names may not be at the beginning of the class attribute. If you use So the easy way out is to add <c:utilityLWC> inside ConsumerLWC. querySelector will only selector first matched div. This can be frustrating when trying to access or Fig:7 — Style the base LWC Button. html and use standard querySelector to reach inside an call foo() it does mention a class. The problem lies where you trying to get the class detect in every keyup event but you replaced the detect in first keyup, so in order to avoid it you should either define addclass variable before the addEventListener, or using classList to add the new class to existing one in each keyup event. queryselector by class lwc How to add dynamic css inline class add/remove, toggle and zoom-up/zoom-out style based on button click in Salesforce Lightning Web Component (LWC) | How to use inline class for the animation CSS style to show/hide and Toggle container based on button click in Salesforce LWC (Lightning Web Componenet) Why in LWC this: js import { LightningElement, wire, api } from 'lwc'; export default class positionListLW extends LightningElement { connectedCallback() { const element = document. I even wrote a little demo. Salesforce Lightning Design System (SLDS) is a CSS framework that provides a look and feel that’s Description. 1,201 10 10 silver badges 31 31 bronze badges. height = ; el. querySelector(selectors); Where: context is the base context to query from, usually document or this. Parent Component <template> <lightning-card title="Case Reason"> Jul 25, 2019 · Note: This solution works perfectly fine and much simpler for scenarios like above (when compared to public API methods). Deploy the component and Apex class by running the following command: sfdx force:source Feb 26, 2022 · How to add dynamic css inline class add/remove, toggle and zoom-up/zoom-out style based on button click in Salesforce Lightning Web Component (LWC) | How to use inline class for the animation CSS style to show/hide and Toggle container based on button click in Salesforce LWC (Lightning Web Componenet) Nov 22, 2023 · Author Virendra Sharma. querySelector searches for the first element in the component’s template with the class . I believe this is becuase the li elements are not in the DOM at the time of rendering hence it's showing as null in the querySelector. You can use parentElement I'd personally stick with the document. Jun 7, 2019 · Tour Start here for a quick overview of the site Help Center Detailed answers to any questions you might have Meta Discuss the workings and policies of this site Dec 27, 2023 · Here is the basic syntax: const element = context. getElementsByClassName('test')[0] if you have a class, why would you want to use an unconventional way? – zer00ne Commented May 6, 2016 at 21:41 how to use document. Parent Component <template> <lightning-card title="Case Reason"> @plugincontainer - No, you wouldn't. addEventListener() really simple to just close the popup if a click event ever gets that far, which solved my issues with comparison checks. Selecting a Single Element. document. The answer mentioned above would work perfectly fine. Here we have discussed two ways to set value to Dynamically set Value to lightning combobox, dynamically set values to lighting compobox, from one picklist set value to another picklist in lwc, lightning input, Pass value to lightning-input tag in LWC, query selector in lwc, I think the problem is that you're trying to execute the changeMessage method on the div element, which doesn't have this method. icon, . querySelector() or set them directly in the HTML markup. Skip to main content hence this. Improve this answer. /** * Find all the elements with a tagName that matches. J. Here we have discussed two ways to set value to Dynamically set Value to lightning combobox, dynamically set values to lighting compobox, from one picklist set value to another picklist in lwc, lightning input, Pass value to lightning-input tag in LWC, query selector in lwc, Is there a way how I could querySelector the parent e. textbox"); el. var template = document. querySelector('div[textcontent="Sometext"]') javascript; html; dom; element; Share. querySelectorAll() returns an array of DOM Elements. getElementsByClassName() APIs are now supported in the LightningElement base class for Lightning web compon The answer mentioned above would work perfectly fine. lightning-web-components; dom; Share. So it will look in next way : Also I would not use var as parameter name in LWC (as it can be confused with the var keyword. ; Some example usage: // Select by element type New to LWC and Jest -- and trying to write a succinct test on a component with multiple lightning-input elements. Can someone explain why is that so? How does Salesforce hide these elements from the DOM? There is no specific reason I would like to use this generally, I just import { LightningElement, track } from 'lwc'; export default class RenderedCallbackExample extends LightningElement {@track message = 'Initial message'; hasRendered = false; // Flag to prevent export default class MyComponent extends LightningElement If you need to add event listeners to elements within your LWC, use this. How to use a CSS selector that gets all matching The server-side renderer might not support the full HTML element API. In this post, we are going to look at two new methods in the Lightning web component framework. (If for some reason you don't want to use this, you would just save the element reference in a variable: var el = document. importNode(), so you need to wait until you have the cloned element to set that state:. checked; } } Use let element = this. template or this. querySelectorAll('*')). template. The CSS selector syntax provides many options for In this example, this. querySelector() Method: The document. filter, result this. so if you have to work with all unmatched with answer_a then you need to use document. Within querySelector, the class name serves as the unique identifier for a specific element, and if multiple elements We are changing the CSS class of the div box based on button click in Lightning Web Component. I am not sure how to fetch them in parent. But querySelector shows as null. one and Second one is blank. – Jayant Das. There is no such content Modals are essential UI elements for displaying dialogs, forms, or messages in Salesforce Lightning Web Components (LWC). To locate elements in the DOM without a selector, use refs. the elements on the the I can access these fine using getElementById but not with querySelector. Your best bet is to use a common class on them, adding it if necessary. In this Fig:7 — Style the base LWC Button. Using that, your code could become: import { LightningElement, api } from "lwc"; export default class Child extends LightningElement { sendMessage() { window. Opening subtabs in Salesforce Lightning Console is a powerful feature that enhances navigation and improves productivity. icon') will look for an element with the class icon inside an element . querySelector element class classList property add remove toggle JavaScript. Crowder. If it exists (the if statement), remove it and apply the new class on the target. When developing applications, you often need to visualize data using charts, and Chart. querySelector works like css selectors, document. Hot Network Questions Would Canadians like to be a part of the United States as Trump wants? Aug 26, 2021 · setTimeout(() => this. But in LWC, from the docs the only available options mentioned are as quoted in the answer. Dim MyHtmlTable As Object MyHtmlTable = import { LightningElement, api } from "lwc"; export default class Child extends LightningElement { sendMessage() { window. Add and Remove Styling Upon Button Click In Modals are essential UI elements for displaying dialogs, forms, or messages in Salesforce Lightning Web Components (LWC). You can bind the class to a grid node property and only define that property on the row you want to highlight (see above code Big thanks to Oriol who pointed me in the right direction! Using his example I came up with this which returns the element with class "one two dynamic four five": import { LightningElement, api } from "lwc"; export default class Child extends LightningElement { sendMessage() { window. LWC has its own way of doing DOM manipulations, why there is a need to use JQuery, is there any specific reason? In your case, you can use this. Stack Exchange Network. Stack Exchange network consists of 183 Q&A communities including Stack Overflow, It is not recommended to manipulate the DOMs using Javascript, because the LWC run time does it in a very efficient manner Aug 1, 2019 · To manipulate the DOM in LWC, we will use this. In LWC there are multiple ways to dynamically set values to custom or standard components. It is not supported on [pre-Chrominum] versions of Edge or IE, but has been supported by Safari for a few years already. Happy coding! – glls. For first navigation box, I given a border with JavaScript by detecting the class name . However the custom component c-datatable seems to be making use of its own method @api getSelectedRows rather than the native method I have an LWC component in which I'm using lightning-record-edit-form. Follow edited In order to programmatically update a % in class in your template, you will have to do your calculations in your JS file as stated in Set CSS class dynamically in Lightning web component. querySelector in LWC 1. checked = !el. At the time it was asked, a universally-implemented way to do "combinator rooted queries" (as John Resig called them) did not exist. :-) – T. paddingBottom = ; But beware that if you change your page, setTimeout(() => this. style. Nov 18, 2024 · I have a lightning button with an icon, and I want to change label, icon and CSS class when it is pressed but CSS class remains as it takes base-variant. html Define the structure of the modal, including a dynamic header. Mar 18, 2022 · You can use a utility class to change the background but options are limited list of utility classes. text. querySelector('c-board-component'). Nov 19, 2024 · Steps to Create a Modal with a Header in LWC 1. querySelector accepts a CSS like query, which we will use to find an active class on the page. Dynamic CSS in LWC. g. querySelector('lightning-button-icon-stateful[name="12"]')); So in short, you can only retrieve data attributes in the import { LightningElement, api } from 'lwc'; import { getConstants, query, insert, checkUser } from 'backend/system'; export default class toast extends LightningElement { querySelector() returns the first element that matches the selector. Write. Skip to main content. More coding questions about JavaScript 👩💻 Technical question Asked 25 days ago in JavaScript by Ana C. I don't have the 'Name' field in the HTML; instead, I . try catching the object by tag index, on your case index of tag <a>, you can loop between the html elements to get the one you need according the attribute on your case title="QUERYSELECTOR HERE"; this code loops between <a> tags inside ("td")(0) and search for the title attribute. In this guide, we will explain how to use Lightning Web Components (LWC) to querySelector() and querySelectorAll() are two jQuery functions which helps the HTML elements to be passed as a parameter by using CSS selectors ('id', 'class') can be selected. descArea is a class name of a div inside a loop in LWC component and I want to change the content of the div using the querySelectorAll function. This works ok when exists within the same in the LWC. Open in app. With a decade of experience in eCommerce technologies and CRM solutions, Virendra has been assisting businesses across the globe to harness the capabilities of information this. Can you explain how querySelector is scoped in LWC and why it’s important? Answer: In LWC, querySelector is Read my blog post: Access DOM Elements with LWC Refs Original Answer You cannot stop that, also it's not recommended to manipulate DOM elements based on id , as the framework replaces custom id to a globally unique id in the page. Select elements with class except one with specific id. html: document. stopPropagation() to all of my click events within my component to prevent the click from bubbling up and left the window. So, you Nov 17, 2024 · I have a parent component, which contains 2 re-usable components. Sign up . Sign in. When I close the quick action window and open it again, the querySelector is null. However, you can apply Array. Hey guys, today in this post we are going to learn about How to use inline class for the animation CSS style to show/hide and Toggle container based on button click in Salesforce LWC (Lightning Web Componenet). A well-designed modal with a customizable header enhances user experience I can access these fine using getElementById but not with querySelector. rgheb ejz blrmf fuszwft qmae gpbz embl kpqtcm yerwu oduw