Javascript Interview Questions on filter method | filter method | Javascript

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Welcome to my channel Programming Twister.

In this video, we will dive into one of the essential array methods in JavaScript, the filter() function. The filter() function allows us to create a new array by filtering out elements from an existing array based on a provided condition.

Throughout this video, we will explore various interview questions related to the filter() function. We will cover topics such as:

Q1 : Given an array of numbers, use the filter method to create a new array that contains only the even numbers.
Q2 : Write a code snippet using the filter method to extract all the positive numbers from an array.
Q3 : How can you use the filter method to find all the words in an array that have more than 5 characters?
Q4 : Given an array of objects, use the filter method to create a new array that contains only the objects with a specific property value.
Q5 : Write a function that takes an array of strings and uses the filter method to find all the strings that start with a specific letter.

By the end of this video, you will have a solid understanding of how to utilize the filter() function effectively in JavaScript. Whether you are preparing for a job interview or looking to strengthen your JavaScript skills, these interview questions will help you enhance your knowledge and problem-solving abilities.

So, if you are ready to level up your JavaScript skills and conquer those interview questions on the filter() function, hit the play button and let's get started!

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Happy coding!

JavaScript Interview Questions on map() function/method.

⏱️----------------------- Video Chapters -----------------------⏱️
00:00 Intro
00:12 What is filter() method?
00:50 use the filter method to create a new array that contains only the even numbers.
03:10 use the filter method to extract all the positive numbers from an array.
04:20 use the filter method to find all the words in an array that have more than 5 characters?
05:45 use the filter method to create a new array that contains only the objects with a specific property value.
07:38 use the filter method to find all the strings that start with a specific letter.
09:09 Outro

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[prakharpatel]

@2:45 Question: Is it necessary to write return inside filter method if filter itself returns a new array. Can we simply write:
let newArr = arr.filter((ele) => (ele % 2 === 0) ) ?