Roman Numeral Converter, regex: /[e.]/g?

[Chri5]

Hi,

New to programming.

I inspected the fCC source code for the Roman Numeral Converter and on line 36 there is: str.match(/[e.]/g))

What is the e. in regex? It seems to match any non-numerical value but I can’t find reference to it doing that.

[JeremyLT]

You should not look at the solution source code before finishing and submitting the project yourself.

[hasanzaib1389]

@Chri5

str.match(/[e.]/g))

In the above regular expression [e.] is look for every occurrence of either e or . in the string.
Example code:

const str = "Hello. How are you?";
const matches = str.match(/[e.]/g);
console.log(matches);

output:

[ 'e', 'e', '.', 'e' ]

[Chri5]

Thank you! I just realized that line is there to catch input of “e” as exponent or “.” as decimal point. Now that makes sense.

[JeremyLT]

Note, you really, really should not be looking at the solution at all before submitting your own.