isRepeat(arr){
var hash = {};
for(var i in arr) {
if(hash[arr[i].name])
return true;
hash[arr[i].name] = true;
}
return false;
},
此方法返回值为true或false,name为要判断的字段;
Determine whether the value in the array is repeated
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Origin blog.csdn.net/qq_37548296/article/details/128498673
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