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Home JavaScript Object Pick object keys Pick object keys JavaScript, Object · Oct 18, 2020
Picks the key-value pairs corresponding to the given keys from an object.
Use Array.prototype.reduce()
to convert the filtered/picked keys back to an object with the corresponding key-value pairs if the key exists in the object.
const pick = ( obj, arr ) =>
arr. reduce ( ( acc, curr ) => ( curr in obj && ( acc[ curr] = obj[ curr] ) , acc) , { } ) ;
pick ( { a : 1 , b : '2' , c : 3 } , [ 'a' , 'c' ] ) ; More like this Pick and omit keys from JavaScript objects easily, using the snippets in this collection.
Collection · 4 snippets
Omits the key-value pairs corresponding to the given keys from an object.
JavaScript, Object · Oct 21, 2020
Creates an object composed of the properties the given function returns truthy for.
JavaScript, Object · Oct 22, 2020
Creates an object composed of the properties the given function returns falsy for.
JavaScript, Object · Oct 21, 2020