js实现数组去重

1.遍历

let aArray = [1,2,2,3,3,"3"]
let bArray = []
for(const a of aArray){
    let index = bArray.findIndex(b => b===a)    
    if(index==-1) {
        bArray.push(a)  
    }   
}

 

 

2.es6

let aArray = [1,2,2,3,3,"3"]
let bArray = []
bArray.push(...new Set(aArray))