如何比较两个具有相似字符的字符串？

Question

The below code is a minimal representation of my problem. What should be done to make the if condition true so that it prints IP Addresses match! ?

I know there's a problem with encoding of both strings. I am looking for an answer that converts both strings to some uniform encoding that passes the if condition.

 var ip1="127.0.0.1"; var ip2="127․0․0․1"; //127%u20240%u20240%u20241 if(ip1 === ip2){ console.log("IP Addresses match!"); }else{ console.log("IP Addresses do not match!"); } 

Answer 1

You could replace non digit characters with dot.

 var ip1 = "127.0.0.1", ip2 = "127․0․0․1"; ip1 = ip1.replace(/\\D+/g, '.'); ip2 = ip2.replace(/\\D+/g, '.'); if (ip1 === ip2){ console.log("IP Addresses match!"); } else { console.log("IP Addresses do not match!"); } 

Answer 2

Based on the discussion in comments, am posting this answer which uses normalize function in "NFKD" mode.

 var ip1="127.0.0.1"; var ip2="127․0․0․1"; //127%u20240%u20240%u20241 if(ip1.normalize("NFKD") === ip2.normalize("NFKD")){ console.log("IP Addresses match!"); }else{ console.log("IP Addresses do not match!"); }