Regular Expressions 101

Explanation

Pro

Group 1(([\S\s](?:(?!`{3})))*)

Group 2([\S\s](?:(?!`{3})))*

*repeats the group contents below any number of times:

Character Class[\S\s]

\Sany non-whitespace character

\sany whitespace character

Non-Capturing Group(?:(?!`{3}))

Negative Lookahead(?!`{3})

`{3}the literal ` (96₁₀ / 140₈ / 60₁₆) , repeated exactly 3 times

Group 3([\r\n]|$)

1st Alternative[\r\n]

Character Class[\r\n]

\ra carriage return (ASCII 13)

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

2nd Alternative$

$end of string

Detailed match information will be displayed here automatically.

26 tokens

(([\S\s](?:(?!`{3})))*)([\r\n]|$)

New

var foo = 42;
```

var foo = 42;
```