var obj = {};
var aa = [{
"name": "aa",
"pwd": "xvxv"
}, {
"name": "aa",
"pwd": "xvxv"
}, {
"name": "bb",
"pwd": "xvxv"
}, {
"name": "cc",
"pwd": "xvxv"
}];
aa = aa.reduce(function(item, next) {
obj[next.name] ? '' : obj[next.name] = true && item.push(next);
return item;
}, []);
console.log(aa);
二、判断对象中是否存在key
var result = [];
var obj = {};
for(var i =0; i<aa.length; i++){
if(!obj[aa[i].key]){
result.push(aa[i]);
obj[aa[i].key] = true;
}
}
console.log(result);
