How can you use JavaScript regex to verify that the last three characters in a string are

What method can be used to confirm that a string concludes with precisely three digits?

accepted examples:

Hey-12-Therexx-111
001
xxx-5x444

rejected examples:

Hey-12-Therexx-1111
Hey-12-Therexx-11
Hey-12-Therexx
12
112x

Answer №1

One way to express this is:

/(\A|\W)\d{3}$/

This regular expression signifies, "start of the string or a non-digit character, followed by three digits at the end of the string".

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