Initialize n-dimensional array
JavaScript, Array, Recursion · Oct 22, 2020
Create a n-dimensional array with given value.
- Use recursion.
- Use
Array.from(),Array.prototype.map()to generate rows where each is a new array initialized usinginitializeNDArray().
const initializeNDArray = (val, ...args) =>
args.length === 0
? val
: Array.from({ length: args[0] }).map(() =>
initializeNDArray(val, ...args.slice(1))
);initializeNDArray(1, 3); // [1, 1, 1]
initializeNDArray(5, 2, 2, 2); // [[[5, 5], [5, 5]], [[5, 5], [5, 5]]]
