Regular Expressions 101

varthe literal text var (case sensitive)

\s+any whitespace character, repeated at least once

numberthe literal text number (case sensitive)

\s*any whitespace character, repeated any number of times

=the literal = (61₁₀ / 75₈ / 3D₁₆)

\s*any whitespace character, repeated any number of times

Group 1(\d+)

\d+a digit, repeated at least once

\s*any whitespace character, repeated any number of times

;the literal ; (59₁₀ / 73₈ / 3B₁₆)

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

var\s+number\s*=\s*(\d+)\s*;

New

<script type="text/javascript">
var number = 100;
var foo = "bar";
var number=200;
var number       =    500;
</script>