Frequently Asked LWC Interview Questions & Answers
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- čas přidán 4. 09. 2024
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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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lightning combox is used to display the picklist values of an object
Correct
Nice video you have covered all basic and really important questions
Glad you found this helpful
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}
In Html page we just need to keep {recordId} right ? no need of $ symbol
26.51 lightning:combobox
Thanks Ankit ,This is very Helpful can I get pdf for this Question and ans?
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.
Yes catch is render is not a life cycle method , but we can use the protected method to do that
simple but best and excellent!!
Thanks a lot 😊
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
Few of them already covered in part 2. Remaining will cover in part 3
First question answer is using RenderedCallBack we can achieve it and Second question answer is Using Wire Decorator we can achieve it.
It's not renderedCallBack, it is render method
Lightning-combobox is used to display the picklist value to ui
Correct
1. render()
2.In js file we write the @api recordId
Correct
@techJourneyWithAnkit as i understand render() is not the part of life cycle.
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.
Wire be be called twice but return data only once
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;
Yes, correct
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.....!
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.
But most of the people consider render as life cycle hook
Hi Ankit, what are your thoughts of Data cloud, it is going to be the next big thing in Salesforce ecosystem?
Definitely it will be. Data Cloud + AI is future
@@TechJourneyWithAnkit Salesforce is pushing towards CRM+AI+Data with trust. I have started learning data cloud
@@TechJourneyWithAnkit Any series you will be planning on it
Render method
"When will the next class be?"
Soon
1.Render Method
2.@api recordId
Correct
Hi Ankit, As per question, render should be the answer because it is not part of life cycle.
2. @api to get recordid
It should be @api recordId