Regular Expressions 101

Pro

^start of line

Positive Lookahead(?=[\w\s-+.])

Character Class[\w\s-+.]

\wany word character

\sany whitespace character

-the literal - (45₁₀ / 55₈ / 2D₁₆)

+the literal + (43₁₀ / 53₈ / 2B₁₆)

.the literal . (46₁₀ / 56₈ / 2E₁₆)

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

Character Class[-+.'\w]+

+matches at least one character from the set below:

-the literal - (45₁₀ / 55₈ / 2D₁₆)

+the literal + (43₁₀ / 53₈ / 2B₁₆)

.the literal . (46₁₀ / 56₈ / 2E₁₆)

'the literal ' (39₁₀ / 47₈ / 27₁₆)

\wany word character

@the literal @ (64₁₀ / 100₈ / 40₁₆)

Character Class[-.\w]+

+matches at least one character from the set below:

-the literal - (45₁₀ / 55₈ / 2D₁₆)

.the literal . (46₁₀ / 56₈ / 2E₁₆)

\wany word character

\.the literal . (46₁₀ / 56₈ / 2E₁₆)

Character Class[-.\w]+

+matches at least one character from the set below:

-the literal - (45₁₀ / 55₈ / 2D₁₆)

.the literal . (46₁₀ / 56₈ / 2E₁₆)

\wany word character

\s*any whitespace character, 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.

26 tokens

^(?=[\w\s-+.])\s*[-+.'\w]+@[-.\w]+\.[-.\w]+\s*$

New

dfdfd@bcvb.com,
dfdfd@bcvb.com`
test@test.com
'd@dfgdfg.com
`d@dfgdfg.com
ab12@bc.co
   space@test.check