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IE不兼容findIndex
var arr = [
{id: 1, name: 'java'},
{id: 2, name: 'c++'},
{id: 3, name: 'js'},
{id: 4, name: 'c#'}
]
// ES6 chorome兼容
var domIndex = '2'
var spliceIdex;
arr.findIndex((item,index)=>{
if(domIndex == index){
return spliceIdex= index;
}
});
arr.slice(spliceIdex,1);
// JSchorome ANDIE兼容
Array.prototype._find_ = function(cb){
for(var i=0;
i< this.length;
i++){
if(cb(this[i],i)){
return this[i];
}
}
}
arr._find_(function (item, index){
if(domIndex == index){
return spliceIdex= index;
}
})
arr.slice(spliceIdex,1);
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