Question

js获取有几个相同字符 csdn

Answer 1

js获取有几个相同字符 csdn
function countChar(str,char){ //str为字符串，char为字符
var count=0;
for(var i=0;i<str.length;i++){
if(str.charAt(i) == char){
count++;
}
}
return count;
}