1、简单类型数组去重
let numberarray = [1,2,3,4,4,4,66,66,7]
console.log(Array.from(new Set(numberarray)));
2、对象数组去重
let arr = [
{
id: 0,name:'张三'},
{
id: 1,name: '李四'},
{
id: 2,name: '张三'},
{
id: 3,name: '王五'}
]
// 去重方法---根据指定的属性去重
function arrDistinctByProp(arr, prop) {
return arr.filter(function (item, index, self) {
return self.findIndex(el => el[prop] == item[prop]) === index
})
}
//通过name属性去重
let newArr = arrDeweighting(arr, 'name')
console.log(newArr)