题解 | #字符串字符统计#
字符串字符统计
https://www.nowcoder.com/practice/777d0cd160de485cae0b1fd1dd973b44
function count(str) { str = str.replace(/\s*/g,""); let obj = {}; for(var value of str){ if(obj[value]){ obj[value]++; }else{ obj[value]=1; } } return obj; }