Help for this page

Select Code to Download

Select or download this
```
$email =~ m/^[a-z0-9]@[a-z0-9]$/
```

Select or download this

$email =~ /^[a-z0-9]+@[a-z0-9]+\.[a-z0-9]+$/

Select or download this
```
$email =~ /^\w+@\w+\.\w+$/
```