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30-seconds-of-code/snippets/coalesce.md
2017-12-28 08:30:19 +00:00

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coalesce

Returns the first non-null/undefined argument.

Use Array.find() to return the first non null/undefined argument.

const coalesce = (...args) => args.find(_ => ![undefined, null].includes(_));
coalesce(null, undefined, '', NaN, 'Waldo'); // ""