JavaScript Lesson 12 Array Manipulations

Array Manipulation is a something that you will have to do when developing applications. This lesson covers the basics of how to do that. An Array is a object in javascript so we can use properties and methods on them.

This lesson covers the following topics
Mutator methods - These Change the Array Permenantly.

length Property - Tells us how many items are there in a Array
push() method - Adds an Item to the end of the Array
unshift() method - Adds an Item to the beginning of the Array
pop() method - Remove an Item from the end of the Array
shift() method - Remove an Item from the begining of the Array
splice() method - Replace Items from the Array and Add new Items
reverse() method - Reverse the Order of the Items in an Array
sort() method - Sorts the Array

Accessor methods - These methods do not modify the array and return some representation of the array

join() method - Convert Array in to a String
indexOf() method - Check if a Item exists in an Array
filter() method - Returns a new Array after compairing it using a function

There are many other javascript methods that can be used on a string follow the below link to access them

Do Subscribe, Like and Share my tutorials.

Follow me on Twitter @Uthpala_419

[ashishrprastogi]

Thanks! Please upload next as soon as possible

[tubeMonger]

Thanks. Now I understood the filter method. I wonder if it is any easier with ES6.

[paulbrown]

On the filter function, there is no need for the if statements, simply return value > 10 and it will do the same with much less code.