找出字符串中第一个只出现一次的字符的索引
function firstOnece(str) {
var len = str.length;
for (var i = 0; i < len; i++) {
var flag = 1;
for (var j = 0; j < len; j++) {
if (i == j) {
continue;
}
else {
if (str[i] == str[j]) {
flag = 0;
break;
}
}
}
if (flag == 1) {
return str[i];
}
}
}
var a = "aabhacbhyayic1"
console.log(firstOnece(a))//i
Common programming questions in front-end interviews
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Origin blog.csdn.net/qq_41988554/article/details/104045211
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