React Js Series for Beginners தமிழில் 36 : Destructuring - Array & Object in Javascript

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Destructuring is a handy way to take values out of arrays or objects and store them in variables. It’s like unpacking items from a box and putting them where you want.

Array destructuring lets you pull out values from an array and put them directly into variables. For example, if you have let fruits = ['apple', 'banana', 'cherry'];, you can do let [a, b, c] = fruits;. Now, a is 'apple', b is 'banana', and c is 'cherry'.

You can use the rest operator (...) with array destructuring to collect the remaining items into a new array. For instance, let [a, ...rest] = ['apple', 'banana', 'cherry']; puts 'apple' in a, and rest will be an array with ['banana', 'cherry'].

Sometimes arrays have arrays inside them. With nested destructuring, you can unpack values from these inner arrays. For example, let numbers = [1, [2, 3], 4];, and if you want to grab the 2 and 3, you can do let [ , [x, y]] = numbers;. Now, x is 2 and y is 3.
also use the spread operator with objects. If you have let person = { name: 'John', age: 25 }; and want to add more information, you can do this: let updatedPerson = { ...person, job: 'developer' };. This new object has all the old information plus the new job.

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🕘Timestamps:
00:05 - Destructuring Overview
00:33 - Array Destructuring
03:13 - Rest Operator Example
05:11 - Nested Array Destructuring
07:45 - Object Destructuring
11:55 - Nested Object Destructuring

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