pluck

v0.9.6

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Passing

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Public

PUBLISHED

5 years ago

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2 KB

Returns a new list by plucking the same named property off all objects in the list supplied.

Object

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pluck (

key:(Number | String),

f:Array

) : Array

Returns a new list by plucking the same named property off all objects in the list supplied.

pluck will work on any functor in addition to arrays, as it is equivalent to R.map(R.prop(k), f).

Example

var getAges = R.pluck('age');
     getAges([{name: 'fred', age: 29}, {name: 'wilma', age: 27}]); //=> [29, 27]

     R.pluck(0, [[1, 2], [3, 4]]);               //=> [1, 3]
     R.pluck('val', {a: {val: 3}, b: {val: 5}}); //=> {a: 3, b: 5}

Arguments

key: (Number | String)

The key name to pluck off of each object.

f: Array

The array or functor to consider.

Returns

Array

The list of values for the given key.