I need to find out if an array of a JS object includes an object with a specific key.
I am using,
my_array.filter((e) => Object.keys(e).includes(my_key)).length > 0
but there must be a way to do it simpler. Any suggestions?
Does array include object with specific key?
GRZa
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2 Answers
instead of filter use some, already returns true or false and it shortcircuits as soon as it finds the first
https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/some
Instead of .filter(…).length > 0, use .some(…).
Instead of Object.keys(…).includes(…), use … in … (or Object.hasOwn(…, …) if you need to ignore inherited properties).
So
my_array.some(e => my_key in e)
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