Regular Expressions 101

Explanation
Pro

1st Alternative(?:"(?:\\.|[^"\\])*"|'(?:\\.|[^'\\])*')

Non-Capturing Group(?:"(?:\\.|[^"\\])*"|'(?:\\.|[^'\\])*')

1st Alternative"(?:\\.|[^"\\])*"

"the literal " (34₁₀ / 42₈ / 22₁₆)

Non-Capturing Group(?:\\.|[^"\\])*

*repeats the group contents below any number of times:

1st Alternative\\.

\\the literal \ (92₁₀ / 134₈ / 5C₁₆)

.any character (except for line terminators)

2nd Alternative[^"\\]

Negated Character Class[^"\\]

"the literal " (34₁₀ / 42₈ / 22₁₆)

\\the literal \ (92₁₀ / 134₈ / 5C₁₆)

"the literal " (34₁₀ / 42₈ / 22₁₆)

2nd Alternative'(?:\\.|[^'\\])*'

'the literal ' (39₁₀ / 47₈ / 27₁₆)

Non-Capturing Group(?:\\.|[^'\\])*

*repeats the group contents below any number of times:

1st Alternative\\.

\\the literal \ (92₁₀ / 134₈ / 5C₁₆)

.any character (except for line terminators)

2nd Alternative[^'\\]

Negated Character Class[^'\\]

'the literal ' (39₁₀ / 47₈ / 27₁₆)

\\the literal \ (92₁₀ / 134₈ / 5C₁₆)

'the literal ' (39₁₀ / 47₈ / 27₁₆)

2nd Alternative(\/\/.*$|^\s*\/\/.*$)

Group 1(\/\/.*$|^\s*\/\/.*$)

1st Alternative\/\/.*$

\/the literal / (47₁₀ / 57₈ / 2F₁₆)

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

$end of line

2nd Alternative^\s*\/\/.*$

^start of line

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

\/the literal / (47₁₀ / 57₈ / 2F₁₆)

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

$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

Match Information

Detailed match information will be displayed here automatically.

Quick Reference

25 tokens

Regular Expression

(?:"(?:\\.|[^"\\])*"|'(?:\\.|[^'\\])*')|(\/\/.*$|^\s*\/\/.*$)

New

{
    "example": "This is a // test",
    "anotherExample": "This is another /// test",
    'ap\//ostr//ophe': 'http://example.com' // http://example.com
    "logger": {
        "prefix": "dbug", // This is a comment
        "level": "de\/\\//bug" /// Another comment
    },
    "url": "http://example.com" //// This should not be removed
}