let array=[ ???????{ ???????????name:'jack', ???????????age:'19' ?????????}, ???????{ ???????????name:'rose', ???????????age:'19' ?????????} ???] ??????var box=array.some((value,index)=>{ ???????return value.name=='jack' ???}) ?console.log(box,"box") //true "box"主要应用在判断某一类数组里面有没有这个东西,只要一个存在就返回true
js中some()的用法
原文地址：https://www.cnblogs.com/antyhouse/p/9947014.html