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30-seconds-of-code/snippets/digitize.md
Mathias Bynens 8ee50178f3 Avoid confusing prototype methods for static methods
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.`.
2018-09-28 15:44:12 -04:00

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]