# Creating a two-dimensional array with given width and height in JavaScript

We are required to write a JavaScript function that creates a multi-dimensional array based on some inputs. It should take in three elements, namely −

• row − the number of subarrays to be present in the array,
• col − the number of elements in each subarray
• val minus; the val of each element in the subarrays

For example, if the three inputs are 2, 3, 10

Then the output should be −

const output = [[10, 10, 10], [10, 10, 10]];

## Example

Following is the code −

const row = 2;
const col = 3;
const val = 10;
const constructArray = (row, col, val) => {
const res = [];
for(let i = 0; i < row; i++){
for(let j = 0; j < col; j++){
if(!res[i]){
res[i] = [];
};
res[i][j] = val;
};
};
return res;
};
console.log(constructArray(row, col, val));

## Output

This will produce the following output in console −

[ [ 10, 10, 10 ], [ 10, 10, 10 ] ]