Regular Expressions 101

Explanation

Pro

^start of string

Negative Lookahead(?!.*spec\.tsx?$)

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

specthe literal text spec (case sensitive)

\.the literal . (46₁₀ / 56₈ / 2E₁₆)

tsthe literal text ts (case sensitive)

x?optionally matches the literal x (120₁₀ / 170₈ / 78₁₆) (case sensitive)

$end of string, or before its final line terminator

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

\.the literal . (46₁₀ / 56₈ / 2E₁₆)

tsthe literal text ts (case sensitive)

x?optionally matches the literal x (120₁₀ / 170₈ / 78₁₆) (case sensitive)

$end of string, or before its final line terminator

Detailed match information will be displayed here automatically.

25 tokens

^(?!.*spec\.tsx?$).*\.tsx?$

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