Regular Expressions 101

metricthe literal text metric (case sensitive)

Negative Lookahead(?!.*_(?:dk|none))

.*any character (except for line terminators), repeated any number of times

_the literal _ (95₁₀ / 137₈ / 5F₁₆)

Non-Capturing Group(?:dk|none)

1st Alternativedk

dkthe literal text dk (case sensitive)

2nd Alternativenone

nonethe literal text none (case sensitive)

Global pattern flags

g modifier: global. Finds all matches instead of stopping after the first

Detailed match information will be displayed here automatically.

Search reference

Regular Expression

metric(?!.*_(?:dk|none))

New

business_metric_one
business_metric_one_dk
business_metric_one_none
business_metric_two
business_metric_two_dk
business_metric_two_none