for-each

v0.9.6

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Passing

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PUBLISHED

5 years ago

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976 B

Iterate over an input `list`, calling a provided function `fn` for each element in the list.

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forEach (

fn:Function,

list:Array

) : Array

Iterate over an input list, calling a provided function fn for each element in the list.

fn receives one argument: (value).

Note: R.forEach does not skip deleted or unassigned indices (sparse arrays), unlike the native Array.prototype.forEach method. For more details on this behavior, see: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/forEach#Description

Also note that, unlike Array.prototype.forEach, Ramda’s forEach returns the original array. In some libraries this function is named each.

Dispatches to the forEach method of the second argument, if present.

Example

const printXPlusFive = x => console.log(x + 5);
     R.forEach(printXPlusFive, [1, 2, 3]); //=> [1, 2, 3]
     // logs 6
     // logs 7
     // logs 8

Arguments

fn: Function

The function to invoke. Receives one argument, value.

list: Array

The list to iterate over.

Returns

Array

The original list.