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Questions tagged [lwc]

For questions about Lightning Web Components (LWC) - the UI framework for the Salesforce platform. When using this tag also include the more generic [salesforce] tag.

503 questions
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How to access loaded script in Salesforce Lightning Web Component?

When loading an external library in a Lightning Web Component, I can't seem to access the actual script. Instead, I can only find the reference to the static resource by checking the resolved import string. phone.js: import { LightningElement } from…
Melvin Kusters
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I'm doing the LWC Superbadge Step 6. Unable to retrieve metadata for descriptor is the error I keep getting

import {LightningElement, api} from 'lwc'; const TILE_WRAPPER_SELECTED_CLASS = 'tile-wrapper selected'; const TILE_WRAPPER_UNSELECTED_CLASS = 'tile-wrapper'; export default class BoatTile extends LightningElement { @api boat; @api…
FSGeoff
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How to get account Id from js? lwc

Need to get in tile.js account info that available in tile.html Got 4 different components: selector, list(nesting selector), details(nesting selector), tile(nesting list). From apex controller passing query of accounts to list, and then 1 account…
Meatinboots
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ChartJs 3.x: ResizeObserver is not a constructor

I'm trying to use ChartJs in LWC, I took the last 3.3.2 version and followed several examples in order to create my chart (here one of the most complete example I found), but when invoking the instruction: this.chart = new window.Chart(ctx,…
zeldez
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Salesforce, Lightning Web Components - change code online

Is it possible to change code (html, js, css) in Lightning Web Components online in Salesforce? Something like this I don't know to run it according this manual. Because I would like to check code imported from VSCode. It seems to me that the…
Elo
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Template.QuerySelector inside Template Tag Not Working

I am trying to render a jsonTree instead of just json text and have the following javascript code to do it (Note: It is in a switch statement): case 'LONGTEXT': this.isLongText = true; var wrapper =…
Alex88
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How to remove empty object in array?

I am trying to remove the empty object {} from the below structure. data = [{ "total" : "value", "status" : "statusVal", "recs" : [{ "total" : "value", "region" : "name", …
ləːnə
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401 Unauthorized REST API in lightning web component salesforce

I'm trying to execute query using REST API, in a lightning web component. the request in Postman returning result with success (enabling Follow Authorization header) but in the JavaScript in lightning web component it returns 401 Unauthorized the…
Oubayda Samrouth
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Change Object field value from array in LWC

I can't update object field value in array in this part. this.wiredProducts[0].Price__c = this.selectedRate; I can get this value but can't do anything with it. It throws such error: [NoErrorObjectAvailable] Script error. So may be someone knows…
python_newbie
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Static Resource not loading in LWC but loading in Aura Successfully why?

Static Resource not loading in LWC I have static resource which is loading successfully in Aura Component and Visualforce page but not in the LWC Folder Structure Staticresource>Cal>fullcalendar.min.js cal -> folder name fullcalendar.min.js ->…
Isthiyaq salesforce
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not able to add new key value pair in the JSON object kindly some one help me out

I am trying to add key value pair in the below JSON object, but it is getting added in the wrong way, is there any way i can add to each object a new key value pair, that will help me to complete the req. JSON as follow : var object =[ { …
Ashmita ranjan
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webworkers not working in salesforce LWC js

I have written basic code in lwc js and it's not working any help would be appreciated. here's my code - ////main js. var worker = new Worker("/resource/webWorker"); worker.onmessage = function(e) { alert('Message received from…
SalesforceDeveloper
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Salesforce LWC FullCalendar V5 Initialization Issue

Having an issue with initializing V5.3.2 FullCalendar in Salesforce Lightning Web Component: JS: import { loadStyle, loadScript } from 'lightning/platformResourceLoader'; import fullCalendar from '@salesforce/resourceUrl/fullCalendar532'; // import…
Dima
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custom carousel in LWC

How do i create an LWC carausel design where the text and image are shown side by side instead of the default top and bottom. what i want is to make 1 & 2 side by side not top and bottom. link from where i took the default…
Gaurav Kumar Pandey
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Module not found: Error: Can't resolve 'lightning/platformResourceLoader'

I have created a LWC (Lightening Web Component)by referring below documentation. https://trailhead.salesforce.com/en/content/learn/projects/build-your-first-app-with-lightning-web-components-open-source/create-the-application And, I expect to use…
user3860630
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