Regular Expressions 101

Negative Lookbehind(?<![;\{\}]|\*\/|\s*\/{2}.*?)

1st Alternative[;\{\}]

Character Class[;\{\}]

;the literal ; (59₁₀ / 73₈ / 3B₁₆)

\{the literal { (123₁₀ / 173₈ / 7B₁₆)

\}the literal } (125₁₀ / 175₈ / 7D₁₆)

2nd Alternative\*\/

\*the literal * (42₁₀ / 52₈ / 2A₁₆)

\/the literal / (47₁₀ / 57₈ / 2F₁₆)

3rd Alternative\s*\/{2}.*?

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

\/{2}the literal / (47₁₀ / 57₈ / 2F₁₆) , repeated exactly 2 times

.*?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

Detailed match information will be displayed here automatically.

Search reference

Regular Expression

(?<![;\{\}]|\*\/|\s*\/{2}.*?)$

New

let app = nothing;
/* main function */
if (something) {
    // this will be the eroor
    const error = "ough-ough!"
}

;