Regular Expressions 101

Explanation

Pro

^start of line

Non-Capturing Group(?:(?!\.bin\.js$).)+

+repeats the group contents below at least once:

Negative Lookahead(?!\.bin\.js$)

\.the literal . (46₁₀ / 56₈ / 2E₁₆)

binthe literal text bin (case sensitive)

\.the literal . (46₁₀ / 56₈ / 2E₁₆)

jsthe literal text js (case sensitive)

$end of line

.any character (except for line terminators)

\.the literal . (46₁₀ / 56₈ / 2E₁₆)

jsthe literal text js (case sensitive)

$end of line

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.

26 tokens

^(?:(?!\.bin\.js$).)+\.js$

New

I want to match the following:

file1.js
file2.src.js
file3.bin.src.js

But not:

file1.bin.js
file2.src.bin.js