group-by

v1.0.0

v0.0.1

STATUS

Passing

DOWNLOADS

58,776

LICENSE

MIT

VISIBILITY

Public

PUBLISHED

7 years ago

SIZE

603 B

Creates an object composed of keys generated from the results of running each element of `collection` thru `iteratee`.

Collection

Object

2 contributors

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groupBy (

collection:(Array | Object),

iteratee:Function

) : Object

Creates an object composed of keys generated from the results of running each element of collection thru iteratee. The order of grouped values is determined by the order they occur in collection. The corresponding value of each key is an array of elements responsible for generating the key. The iteratee is invoked with one argument: (value).

Example

groupBy([6.1, 4.2, 6.3], Math.floor)
// => { '4': [4.2], '6': [6.1, 6.3] }

Arguments

collection: (Array | Object)

The collection to iterate over.

iteratee: Function

The iteratee to transform keys.

Returns

Object

Returns the composed aggregate object.

Test Summary

group-by the groupBy function should exist	Pass
group-by should group by the floored value (4, 6)	Pass