Frequently Asked LWC Interview Questions & Answers

Рет қаралды 6,213

2 ай бұрын

Part 1 - • Frequently Asked LWC I...
Looking to nail your next LWC (Lightning Web Components) interview? 🚀 This video features a comprehensive list of frequently asked LWC interview questions, along with detailed explanations and examples to help you ace your interview! Whether you're a beginner or an experienced developer, this resource will help you brush up on key concepts and boost your confidence. Don't miss out on this essential guide to mastering LWC interviews - hit play now and take your skills to the next level!
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Пікірлер: 37

@vitthalrakh5715 26 күн бұрын

Thanks Ankit ,This is very Helpful can I get pdf for this Question and ans?

@ad123441 2 ай бұрын

26.51 lightning:combobox

@haribabuk5162 2 ай бұрын

lightning combox is used to display the picklist values of an object

@TechJourneyWithAnkit Ай бұрын

Correct

@atulchopade9897 2 ай бұрын

33:01 We can use render method to switch between multiple html file, however it's not a life cycle method it's protected method provided by the framework. 33:01 we can create a public property with @api recordId to get Id from if the LWC component placed on record page.

@TechJourneyWithAnkit 2 ай бұрын

Yes catch is render is not a life cycle method , but we can use the protected method to do that

@NingannaKamalapure 2 ай бұрын

Lightning-combobox is used to display the picklist value to ui

@TechJourneyWithAnkit 2 ай бұрын

Correct

@stoical_shorts1426 2 ай бұрын

Q.LWC is placed on record page and you want to get the record ud of the page. How can we do it? Ans :- import {LightningElement, api} from 'lwc'; export default class example extends LightningElement{ @api recordId; connectedCallback(){ console.log ('This is the recordId of the page', this.recordId); } } Record Id : {$recordId}

@madhumohan2952 15 күн бұрын

In Html page we just need to keep {recordId} right ? no need of $ symbol

@thalurumahendrababu 2 ай бұрын

First question answer is using RenderedCallBack we can achieve it and Second question answer is Using Wire Decorator we can achieve it.

@TechJourneyWithAnkit 2 ай бұрын

It's not renderedCallBack, it is render method

@deepalitiwari6561 2 ай бұрын

Question asked from me - 1. How to pass data from one component to another when they are not connected 2. How to we make callouts in lwc 3 . How we go next page in lwc 4. Can we have multiple js and html files in lwc ? 5. What should be the purpose and what are the benefits of having multiple js and html files 6. Catchable= true , how it functions at the backend how it helps in fetching the data

@TechJourneyWithAnkit 2 ай бұрын

Few of them already covered in part 2. Remaining will cover in part 3

@saptarshidas7877 Ай бұрын

Hey Ankit First of all thanks for the awesome contents. I had a doubt for Wire and connectedCallback order of execution scenario how many times the console log will be printed ? Even though wire is called twice I can see its getting printed only after connectedCallback. Clarify if possible.

@TechJourneyWithAnkit 25 күн бұрын

Wire be be called twice but return data only once

@pranaysawarkar7071 2 ай бұрын

hello ankit how are you i saw this video for my interview preparation in life cycle hooks you include only 5 life cycle hooks like constructor, connected callback, render callback, disconnected callback, and last one is error callback might be render is also consider as life cycle hook they are 6 might be not 5 can you please explain why you consider 5 only in ans.....!

@TechJourneyWithAnkit 2 ай бұрын

No, the render method in Lightning Web Components (LWC) is not technically a lifecycle hook. It's a protected method in the LightningElement class that's similar to lifecycle hooks and is used to conditionally render a template.

@pranaysawarkar7071 2 ай бұрын

But most of the people consider render as life cycle hook

@momanddaughterchannel3938 2 ай бұрын

Render method

@ravigrover1923 14 күн бұрын

Answer 1 : using render() method we can control which template will be visible Answer 2: In the controller of your LWC you can create a @api property with name recorded like below: @api recordId;

@TechJourneyWithAnkit 12 күн бұрын

Yes, correct