Скачать или смотреть React Js Series for Beginners தமிழில் 37 : Array Methods - splice, pop, push, shift & unShift

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Array methods in JavaScript are mainly used to manipulate and clone values within an array. These methods allow you to add, remove, or change items easily, without writing long, complicated code. Whether you need to update an array’s contents or create a copy of an array to avoid changing the original, these methods make the process quick and straightforward.

The pop() method removes the last item from an array. Imagine you have a list of numbers like let numbers = [1, 2, 3, 4];. If you use numbers.pop();, the number 4 will be removed from the list, leaving [1, 2, 3].

The push() method adds a new item to the end of an array. For example, if you have let fruits = ['apple', 'banana']; and use fruits.push('cherry');, the list will become ['apple', 'banana', 'cherry'].

The shift() method removes the first item from an array. If you have let names = ['John', 'Jane', 'Joe']; and use names.shift();, the name John will be removed, leaving ['Jane', 'Joe'].

The unshift() method adds a new item to the beginning of an array. For instance, if you have let colors = ['red', 'green']; and use colors.unshift('blue');, the list will become ['blue', 'red', 'green'].

The splice() method is very powerful because it can add, remove, or replace items in an array.

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🕘Timestamps:
00:10 - Why Array Methods?
00:30 - Overview of add, remove and replace elements
00:51 - pop() method
02:11 - push() method
03:21 - shift() method
04:13 - unshift() method
05:20 - splice() method
07:10 - Removing Elements using Splice
08:50 - Replacing Elements using Splice
10:45 - Adding New Elements using Splice


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