js写出你的名字的拼音，判断哪个字母出现的最多

Posted 2021-12-22 gxx129

function fn(str) 
    var obj = ;
    for (var i = 0; i < str.length; i++) 
        if (!obj[str.charAt(i)]) 
            obj[str.charAt(i)] = 1;
         else 
            obj[str.charAt(i)]++;
        
    
    var value = ‘‘;
    var count = 0;
    for (var i in obj) 
        if (obj[i] > count) 
            count = obj[i];
            value = i;
        
    
    console.log(‘出现次数最多的是‘ + value + ‘,出现次数为‘ + count);