What is the best way to create a multidimensional array with a fixed length in TypeScript?

I'm working on creating a 5x4 grid array in typescript and I'm struggling with properly instantiating it. When trying to push an element into the array using the method for a one-dimensional array, it's not working as expected and giving me an error message indicating that my array has 0 lines.

export class Grid {

    public mainGrid: string[][];

    public constructor() {
        this.mainGrid = new Array<Array<string>>(5)(4);
    }

}

Should I be pushing a new Array(5) multiple times instead?

javascriptangularjstypescript

Answer №1

One way to achieve this in JavaScript is by utilizing the following code snippet:

let element = 0;
let subArray = [element, element, element, element];
let arr1 = [...subArray];
let arr2 = [...subArray];
let arr3 = [...subArray];
let arr4 = [...subArray];
let arr5 = [...subArray];
let grid = [arr1, arr2, arr3, arr4, arr5];

It is important to keep track of the length to avoid exceeding it.

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