Sometimes, we want to compare two JavaScript regexes.

In this article, we’ll look at how to compare two JavaScript regexes.

How to compare two JavaScript regexes?

To compare two JavaScript regexes, we can convert JavaScript regex objects to strings before comparing.

For instance, we write:

const regexp1 = /a/;
const regexp2 = /a/;
const isSame = String(regexp1) === String(regexp2)
console.log(isSame)

to convert regexp1 and regexp2 to strings with String before doing the comparison.

Therefore, isSame is true since they have the same content.

Conclusion

To compare two JavaScript regexes, we can convert JavaScript regex objects to strings before comparing.