all

v0.9.6

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5 years ago

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Returns `true` if all elements of the list match the predicate, `false` if there are any that don't.

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all (

fn:Function,

list:Array

) : Boolean

Returns true if all elements of the list match the predicate, false if there are any that don’t.

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

Acts as a transducer if a transformer is given in list position.

Example

const equals3 = R.equals(3);
     R.all(equals3)([3, 3, 3, 3]); //=> true
     R.all(equals3)([3, 3, 1, 3]); //=> false

Arguments

fn: Function

The predicate function.

list: Array

The array to consider.

Returns

Boolean

`true` if the predicate is satisfied by every element, `false` otherwise.