28 lines
579 B
JavaScript
28 lines
579 B
JavaScript
/**
|
|
* Obliterator Find Function
|
|
* ==========================
|
|
*
|
|
* Function taking an iterable and a predicate and returning the first item
|
|
* matching the given predicate.
|
|
*/
|
|
var iter = require('./iter.js');
|
|
|
|
/**
|
|
* Find.
|
|
*
|
|
* @param {Iterable} iterable - Target iterable.
|
|
* @param {function} predicate - Predicate function.
|
|
* @return {boolean}
|
|
*/
|
|
module.exports = function find(iterable, predicate) {
|
|
var iterator = iter(iterable);
|
|
|
|
var step;
|
|
|
|
while (((step = iterator.next()), !step.done)) {
|
|
if (predicate(step.value)) return step.value;
|
|
}
|
|
|
|
return;
|
|
};
|