What does this regular expression maens "/^.+\@(\[?)[a-zA-Z0-9\-\.]+\.([a-zA-Z]{2,4}|[0-9]{1,3})(\]?)$/"
1388
Learning Regular Expressions
68860
Why this javascript regex doesn't work?
125038
What is a "Nested Quantifier" and why is it causing my regex to fail?
119974
What does << mean in Java?
3965
What special characters must be escaped in regular expressions?
136156
Regular expression works on regex101.com, but not on prod
73024
PHP regex delimiters, / vs. | vs. {} , what are the differences?
133593
Regular expression to check if password is "8 characters including 1 uppercase letter, 1 special character, alphanumeric characters"
1978
What to do Regular expression pattern doesn't match anywhere in string?
133569
What does the double slash mean in `${f// /_}`?
120978
Difference between regex [A-z] and [a-zA-Z]
52449
Java RegEx meta character (.) and ordinary dot?
78438
OR condition in regular expression in perl
130919
Regular expression for letters, numbers and - _
25026
Path prefixes \??\ and \\?\
120134
List of all special characters that need to be escaped in a regex
49341
JavaScript Regex, where to use escape characters?