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How to form a two-dimensional array with given width (columns) and height (rows) in JavaScript ?
We are required to write a JavaScript function that takes in three arguments −
height --> no. of rows of the array width --> no. of columns of the array val --> initial value of each element of the array
Then the function should return the new array formed based on these criteria.
Example
The code for this will be −
const rows = 4, cols = 5, val = 'Example';
const fillArray = (width, height, value) => {
const arr = Array.apply(null, { length: height }).map(el => {
return Array.apply(null, { length: width }).map(element => {
return value;
});
});
return arr;
};
console.log(fillArray(cols, rows, val));Output
And the output in the console will be −
[ [ 'Example', 'Example', 'Example', 'Example', 'Example' ], [ 'Example', 'Example', 'Example', 'Example', 'Example' ], [ 'Example', 'Example', 'Example', 'Example', 'Example' ], [ 'Example', 'Example', 'Example', 'Example', 'Example' ] ]
Updated on: 20-Nov-2020
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