Birdwatch Note Rating
2023-09-29 15:38:27 UTC - HELPFUL
Rated by Participant: 479303D24B9932359BA7D4F10D47243FE5DE417BEDA1D909963F99EC94C011F4
Participant Details
Original Note:
`in` operator checks if the specified property is in the specified object [...] https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Operators/in Array [1,2,3,4] is an object {0: 1, 1: 2, 2: 3, 3: 4, length: 4} Doing `k in l` is checking if l has something on prop k l[0] === 1 l[4] === undefined 'length' in l === true To check values: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/includes
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