javascript generate 2d array code example
Example 1: js initialize 2d array
let data = [];
for (let row=0; row<rows; row++) {
data.push(new Array(cols).fill('#'));
};
Example 2: creating a 2d array in js
var x = new Array(10);
for (var i = 0; i < x.length; i++) {
x[i] = new Array(3);
}
console.log(x);
Example 3: how to create 2d array in javascript
function twoDimensionArray(a, b) {
let arr = [];
for (let i = 0; i< a; i++) {
for(let j = 0; j< b; j++) {
arr[i] = [];
}
}
for (let i = 0; i< a; i++) {
for(let j = 0; j< b; j++) {
arr[i][j] = j;
}
}
return arr;
}
const x = 2;
const y = 3;
const result = twoDimensionArray(x, y);
console.log(result);