How to replace periods with X?

Question

var mystring = "this.is.a.test";
mystring = mystring.replace(/./g, "X");
console.log(mystring);

I expect the output of thisXisXaXtest but my log show XXXXXXXXXXXXXX

https://developer.mozilla.org/en-US/docs/Web/JavaScript/Guide/Regular_Expressions — epascarello, Sep 03 '19 at 16:27

score 5 · Accepted Answer · answered Sep 03 '19 at 16:25

5

. is special character in regex ( which means match anything except new line ) you need to escape it

var mystring = "this.is.a.test";
mystring = mystring.replace(/\./g, "X");
console.log(mystring);

answered Sep 03 '19 at 16:25

Code Maniac

score 1 · Answer 2 · answered Sep 03 '19 at 16:31

1

. matches every character other than newlines. To use it how you are intending, it needs to be escaped: \..

answered Sep 03 '19 at 16:31

Ezra

2 Answers2