怎么找不。 javascript中两个字符串中的相似字符[关闭]

Question

I need to find the no. of similar characters between two strings using JS/PHP

Example str1: Mack str2: Michelle

Similar Characters: "M" "C" similar character count: 2

Answer 1

After your precision, here is my solution:

str1 = str1.toUpperCase();
str2 = str2.toUpperCase();
var counter = 0, find = -1;
for(var i = 0; i < str1.length; i++)
{
    find = str2.indexOf(str1.charAt(i));
    if(find > -1)
    {
      counter++;
      str2 = str2.substr(0, find) + str2.substr(find + 1);
    }
}
alert("Result: "+counter);

It works with the 2 examples you gave us:

Michellle and Michelle = 8 Sneha and naveen = 3