Regular Expressions 101

1st Alternative[^:](\/\/.+)

Negated Character Class[^:]

:the literal : (58₁₀ / 72₈ / 3A₁₆)

Group 1(\/\/.+)

\/the literal / (47₁₀ / 57₈ / 2F₁₆)

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

2nd Alternative(\/\*[\W\w\n\r]+?\*\/)

Group 2(\/\*[\W\w\n\r]+?\*\/)

\/the literal / (47₁₀ / 57₈ / 2F₁₆)

\*the literal * (42₁₀ / 52₈ / 2A₁₆)

Character Class[\W\w\n\r]+?

+?matches at least one character from the set below:

\Wany non-word character

\wany word character

\na line-feed (newline) character (ASCII 10)

\ra carriage return (ASCII 13)

\*the literal * (42₁₀ / 52₈ / 2A₁₆)

\/the literal / (47₁₀ / 57₈ / 2F₁₆)

Global pattern flags

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

Detailed match information will be displayed here automatically.

26 tokens

Regular Expression

[^:](\/\/.+)|(\/\*[\W\w\n\r]+?\*\/)

New

function DoStuff() {
    /* This contains the value of foo.
       Foo is used to display "foo"
       via http://stackoverflow.com
    */
    this.foo = "http://google.com";
	this.protocolAgnosticUrl = "//cdnjs.cloudflare.com/ajax/libs/jquery/3.2.1/core.js";

    //Show a message about foo
    alert(this.foo);

    /// This is a triple-slash comment!

    const globPatterns = [
      'path/to/**/*.tests.js',
      '!my-file.js',
	  "!**/folder/*",
      'another/path/**/*.tests.js'
  ];
}