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.`.
332 B
332 B
digitize
Converts a number to an array of digits.
Convert the number to a string, using the spread operator (...) to build an array.
Use Array.prototype.map() and parseInt() to transform each value to an integer.
const digitize = n => [...`${n}`].map(i => parseInt(i));
digitize(123); // [1, 2, 3]