how to create an array of arrays in javascript code example

Example 1: js array two dimensional

// declaration of a two-dimensional array
// 5 is the number of rows and 4 is the number of columns.
const matrix = new Array(5).fill(0).map(() => new Array(4).fill(0));

console.log(matrix[0][0]); // 0

Example 2: how to make an array in javascript

var names = ["Sanjith", "Pranav", "Aadya", "Saharsh"]

Example 3: how to create an array in javascript

let fruits = ['Apple', 'Banana']

console.log(fruits.length)
// 2

Example 4: how to create array in javascript

/* 
	Array class is a global object that is used
    in the construction of arrays
    
    See - https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array
*/
let array_1 = new Array(2);
	arr.push("James");
	arr.push("Fred");

let array_2 = ["James", "Fred"];

Example 5: creating 2d array in javascript

var [r, c] = [5, 5]; 
var m = Array(r).fill().map(()=>Array(c).fill(0));

Example 6: how to create an array in javascript

let myVar = ["1","2","3"];