Regular Expressions 101

Pro

<span class="num">the literal text <span class="num"> (case sensitive)

\Kresets the starting point of the reported match. Any previously consumed characters are no longer included in the final match

\da digit

Non-Capturing Group(?:\.\d{2})?

?repeats the group contents below at most once:

\.the literal . (46₁₀ / 56₈ / 2E₁₆)

\d{2}a digit, repeated exactly 2 times

Global pattern flags

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

m modifier: multiline. Causes ^ and $ to match the start and end of each line, not only the start and end of the string

Detailed match information will be displayed here automatically.

25 tokens

<span class="num">\K\d(?:\.\d{2})?

New

<h1>
    <span class="paper-name">some string</span>
</h1>
<div class="data-row">
    <span class="num">0.25</span>
</div>