8ee50178f3
Correct: `Array.from()` (it’s a static method) Incorrect: `Array.join()` (doesn’t exist; it’s a prototype method) This patch uses the common `#` syntax to denote `.prototype.`.
19 lines
483 B
Markdown
19 lines
483 B
Markdown
### initializeNDArray
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Create a n-dimensional array with given value.
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Use recursion.
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Use `Array.prototype.map()` to generate rows where each is a new array initialized using `initializeNDArray`.
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```js
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const initializeNDArray = (val, ...args) =>
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args.length === 0
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? val
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: Array.from({ length: args[0] }).map(() => initializeNDArray(val, ...args.slice(1)));
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```
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```js
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initializeNDArray(1, 3); // [1,1,1]
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initializeNDArray(5, 2, 2, 2); // [[[5,5],[5,5]],[[5,5],[5,5]]]
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```
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