Javascript Regex, How to find trailing zeros in a string

Question

I wanna learn more of regex But the complexity of the patterns makes my learning difficult.

I need to find all trailing zeros in a string. Can someone show me a pattern then explain how it works.

Have you tried a regex tutorial? E.g. https://regexone.com/ (there are a lot more) — Kathara, Nov 29 '17 at 07:43
@Wiktor Stribiżew, i only need to find all trailing zeros. Not replace them. — michael01angelo, Nov 29 '17 at 08:46
@Kathara i did tried a regex tutorial but i can only identify the pattern but not how it works — michael01angelo, Nov 29 '17 at 08:47
Yes, you want to find them, so `0+$` pattern in the linked thread is what you need. — Wiktor Stribiżew, Nov 29 '17 at 08:56
@MichaelAngeloSison I suggest you use regex101.com and learn how it works ;) (I've had problems with regex as well, this might help too: https://www.cheatography.com/davechild/cheat-sheets/regular-expressions/) — Kathara, Nov 29 '17 at 09:11

score 1 · Accepted Answer · answered Nov 29 '17 at 07:39

1

Try /[0]+$/g

For example

"2342300".match(/[0]+$/); //["00"]

Explanation

[0]+ matches continous 0s
$ at the end matches end of the input and ensures only 0s at the end of the string is matched.

answered Nov 29 '17 at 07:39

gurvinder372

2

So why not just `/0+$/`? – Derek 朕會功夫 Nov 29 '17 at 07:40
@Derek朕會功夫 Yes that will match as well. I just find `[0]+` more readable than `0+` – gurvinder372 Nov 29 '17 at 07:41

1 Answers1