题解 | #字符串字符统计#
字符串字符统计
http://www.nowcoder.com/practice/777d0cd160de485cae0b1fd1dd973b44
function count(str) {
let rs = {}
str = str.replace(/\s/gi, '')
for(let i=0,imax=str.length; i<imax; i++) {
if (rs[str[i]] == null) {
rs[str[i]] = 1
continue
}
rs[str[i]]++
}
return rs
}