//无聊，闲的蛋疼。瞎搞。记录一下。大佬忽略我。
//“aaabbbcceeff” —— “aaabbb”
//去除字符串中出现次数最少的字符，不改变原字符串的顺序。
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Document</title>
</head>
<body>
<script>
//“aaabbbcceeff” —— “aaabbb”
//去除字符串中出现次数最少的字符，不改变原字符串的顺序。
var str = "aaabblbceceefjf";
let _JSON = {};
for(let i=0; i<str.length; i++){
if(!_JSON[str.charAt(i)]){
_JSON[str.charAt(i)] = 1;
}else{
_JSON[str.charAt(i)]++
}
}
//找到json最小的value
let _tmp = [];
let result = ""
for(let i in _JSON){
_tmp.push(_JSON[i])
}
let sortArr = _tmp.sort(function(x,y){
return x-y
})
for(let i in _JSON){
if(_JSON[i] == sortArr[0]){
result = str.replace(new RegExp(i,'g'),'')
str = result;
}
}
console.log(result)
</script>
</body>
</html>
