cusome

Cumulatively test whether at least n array elements in a provided array are truthy.

Usage

var cusome = require( '@stdlib/array/base/cusome' );

cusome( x, n )

Cumulatively tests whether at least n array elements in a provided array are truthy.

var x = [ false, false, false, true, true ];

var y = cusome( x, 2 );
// returns [ false, false, false, false, true ];

cusome.assign( x, n, y, stride, offset )

Cumulatively tests whether at least n array elements in a provided array are truthy and assigns results to a provided output array.

var x = [ false, false, false, true, true ];
var y = [ false, null, false, null, false, null, false, null, false, null ];

var out = cusome.assign( x, 2, y, 2, 0 );
// returns [ false, null, false, null, false, null, false, null, true, null ]

var bool = ( out === y );
// returns true

The function supports the following parameters:

x: input array.
n: number of elements.
out: output array.
stride: output array stride.
offset: output array offset.

Examples

var bernoulli = require( '@stdlib/random/array/bernoulli' );
var cusome = require( '@stdlib/array/base/cusome' );

// Create an array of random values:
var x = bernoulli( 10, 0.3 );
console.log( x );

// Cumulatively test whether at least two array elements are truthy:
var out = cusome( x, 2 );
console.log( out );