Learn JavaScript Array Methods With Push & Pop
We will give a simple example of a JavaScript multidimensional array.
Multidimensional Array
Contents
- JavaScript Multidimensional Array
- Access Items Of Multidimensional Array
- Add Items in Multidimensional Array
- Remove Items in Multidimensional Array
JavaScript Multidimensional Array
A JavaScript multidimensional array is composed of two or more arrays. In other words, An array whose elements consist of arrays. We will explain with the following multi-dimensional array.
var arr = [
['php', 'python', 'perl'],
['xampp', 'mysql', 'sql'],
['jquery', 'javaScript', 'angular', 'react']
];
Access Items Of Multidimensional Array
How to access items of a multidimensional array. Let’s we will explain. Use the Square brackets of access to array items as following below example.
document.write(arr[1][1]);
// output
// mysql
The JavaScript array index starts with zero. The first bracket refers to the desired item in the outer array. The second bracket refers to the desired item in the internal array.
JavaScript Array Methods | javaScript Tutorial for Beginners
Add Items in Multidimensional Arrays
How to add arrays or elements(Items) in a multidimensional array. We will explain it.
Add Elements(Items) of an array :
arr[1].push('native', 'laravel');
Here we use the javascript array push method to add two new elements(items) to the inner sub-array.
Add a new array of multidimensional array :
How to Add a new array of multidimensional array.
arr.push( ['testing', 'rust', 'c'] );
We display using the javaScript push method to add a new array to the outer array.
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Remove Items in Multidimensional Arrays
How to remove elements (Items) in a multidimensional array. We will explain it.
Remove Elements(Items) of an array :
arr[0].pop();
Here we use the javascript array pop method to remove elements(items) to the inner sub-array. It will remove the last element(item) of an array.
Remove array of multidimensional array :
How to Remove an array of multidimensional array.
arr.pop();
We display using the javaScript pop method to remove the array to outer array. This removes the last array of outer array.
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