数组元素是一个字符串:
(function(){
'use strict';
var r,
arr = ['apple', 'strawberry', 'banana', 'pear', 'apple', 'orange', 'orange', 'strawberry'];
r = arr.filter(function (element, index, self) {
return self.indexOf(element) === index;
});
console.log(r)
})()
数组元素是一个对像:
(function(){
'use strict';
var arr = [
{name:"lili"},
{name:"liwang"},
{name:"liliu"},
{name:"lee"},
{name:"lili"},
{name:"awmgli"},
{name:"awmg"},
{name:"ggmg"},
{name:"awmgli"}
];
var obj = {};
arr = arr.reduce(function(a, b) {
obj[b.name] ? '' : obj[b.name] = true && a.push(b);
return a
}, [])
console.log(arr)
})()