Regular Expressions 101

<scriptthe literal text <script (case sensitive)

\sa Unicode whitespace character

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

src=the literal text src= (case sensitive)

\"the literal " (34₁₀ / 42₈ / 22₁₆)

Group 1((?!http).+?.js)

Negative Lookahead(?!http)

httpthe literal text http (case sensitive)

.+?any Unicode character (except for line terminators), repeated at least once

.any Unicode character (except for line terminators)

jsthe literal text js (case sensitive)

\"the literal " (34₁₀ / 42₈ / 22₁₆)

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

Non-Capturing Group(?:\/script>|\/>)

1st Alternative\/script>

\/the literal / (47₁₀ / 57₈ / 2F₁₆)

script>the literal text script> (case sensitive)

2nd Alternative\/>

\/the literal / (47₁₀ / 57₈ / 2F₁₆)

>the literal > (62₁₀ / 76₈ / 3E₁₆)

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

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Search reference

Regular Expression

<script\s.*src=\"((?!http).+?.js)\".*(?:\/script>|\/>)

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