当前位置：首页 > 文档资料 > Lazy.js 英文文档 >

find

优质

小牛编辑

128浏览

2023-12-01

Seaches for the first element in the sequence satisfying a given predicate.

Signature

Sequence.find = function(predicate) { /*...*/ }

Sequence.find = function find(predicate) {
  return this.filter(predicate).first();
}

Name	Type(s)	Description
predicate	Function	A function to call on (potentially) every element in the sequence.
returns	*	The first element in the sequence for which `predicate` returns `true`, or `undefined` if no such element is found.

Examples

function divisibleBy3(x) {
  return x % 3 === 0;
}

var numbers = [5, 6, 7, 8, 9, 10];

Lazy(numbers).find(divisibleBy3) // => 6
Lazy(numbers).find(isNegative)   // => undefined

免责声明：以上内容版权归原作者所有，如有侵犯您的原创版权请告知，我们将尽快删除相关内容。感谢每一位辛勤著写的作者，感谢每一位的分享。