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 }