题解 | #数组去重#
字符串字符统计
http://www.nowcoder.com/practice/777d0cd160de485cae0b1fd1dd973b44
{"css":"","js":"function count(str) {\n let obj = {};\n for (let i = 0;i<str.length;i++){\n if(obj[str[i]]){\n obj[str[i]] += 1;\n }else{\n obj[str[i]] = 1;\n }\n }\n return obj\n}","html":"","libs":[]}
