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Ignore items from array destructuring

Written byPhuoc Nguyen
28 Feb, 2021
When destructuring an array, you can skip certain items by using blanks:
const dateTime = '2021-02-28T14:57:00';

// Ignore the date part
const [, time] = dateTime.split('T');

// Ignore the seconds
const [hours, minutes] = time.split(':');

hours; // '14'
minutes; // '57'
If you are working in a team, then it's a good idea to add comments for skipped items. It also makes the code more readable:
const [
// date
] = dateTime.split('T');

const [hours, minutes /* seconds */] = time.split(':');

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