比较变态的数组去重，求方法！！！

Question

var a = ['hello',{hello: '323651',bye: '43434'},[1,2,34],true,10,9,8,10,'true','hello',true,false,9,{hello: '312312',ok: 32323},[1,2,34]];

Answer 1

数字，布尔型等直接在后面加判断就好，加在一起也行，我这么写你看着更明白。

var a = ['{"1":1,"2":2}', {1:1, 2:2}, 'hello',{hello: '323651',bye: '43434'},[1,2,34],true,10,9,8,10,'true','hello',true,false,9,'9',{hello: '312312',ok: 32323},[1,2,34]];

var json = {};

var arr = [];

for (let i = 0, len = a.length; i < len; i++) {

  let str = JSON.stringify(a[i]) + typeof a[i];

  if (!json[str]) {

    arr.push(a[i]);

  }

  json[str] = 1;

}

console.log(arr);