有什么办法来计算2个string之间的%匹配

有没有什么办法来计算2个string之间的%匹配?

我有一个情况需要计算2个string之间的匹配,如果有85%

匹配,然后我将结合2个表,我已经写了组合2个表的代码

我的示例string是:

var str1 = 'i love javascript'; var str2 = 'i love javascripttt'; var matchPer = match(str1,str2); // result might be 80% , 85%, 90% ,95% etc 

像这样的东西?

 var str1 = 'i love javascript'; var str2 = 'i love javascripttt'; function match(str1, str2){ var tmpValue = 0; var minLength = str1.length; if(str1.length > str2.length){ var minLength = str2.length; } var maxLength = str1.length; if(str1.length < str2.length){ var maxLength = str2.length; } for(var i = 0; i < minLength; i++) { if(str1[i] == str2[i]) { tmpValue++; } } var weight = tmpValue / maxLength; return (weight * 100) + "%"; } var matchPer = match(str1,str2); console.log(matchPer); //outputs: 89.47% console.log( match("aaaaa", "aaaaa") ); //outputs: 100% console.log( match("aaaaa", "aXaaa") ); //outputs: 80% console.log( match("aaaaa", "aXXaa") ); //outputs: 60% console.log( match("aaaaa", "aXXXa") ); //outputs: 40% console.log( match("aaaaa", "aXXXX") ); //outputs: 20%