Regular Expressions 101

^start of line

Negative Lookahead(?!.*window\.)

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

windowthe literal text window (case sensitive)

\.the literal . (46₁₀ / 56₈ / 2E₁₆)

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

\ban ASCII word boundary

Group 1(console\.log|alert\()

1st Alternativeconsole\.log

consolethe literal text console (case sensitive)

\.the literal . (46₁₀ / 56₈ / 2E₁₆)

logthe literal text log (case sensitive)

2nd Alternativealert\(

alertthe literal text alert (case sensitive)

\(the literal ( (40₁₀ / 50₈ / 28₁₆)

.*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

^(?!.*window\.).*\b(console\.log|alert\().*$

New

console.log("dddsdsf");
alert("dasassd");
window.alert("asdasasasd");