js中根据id去重
data = [
{id:1,name:'a'},
{id:3,name:'b'},
{id:3,name:'c'},
{id:2,name:'a'}
]
// 根据id去重 var arr1=data.filter(function(element,index,self){ return self.findIndex(el=>el.id==element.id)===index //如果是根据name去重就江id改为name }) // 在重新赋值给data data = arr1