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Reference - What does this regex mean?
(1 answer)
Reuse capturing group pattern in JS regex
(3 answers)
Closed 3 years ago.
I have a requirement in which I have a range of 2 IP addresses.
192.168.1.1-192.168.1.1
I want to check that whether both side of dash are valid IP addresses. For single IP address I have a regex but I am not able to add a '-' for checking 2.
Need some help. Below is single IP regex.
^(([0-9]|[1-9][0-9]|1[0-9]{2}|2[0-4][0-9]|25[0-5])\.){3}([0-9]|[1-9][0-9]|1[0-9]{2}|2[0-4][0-9]|25[0-5])$
Related
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How to obtain the query string from the current URL with JavaScript?
(19 answers)
How can I get query string values in JavaScript?
(73 answers)
Closed 3 months ago.
The link like this i want only this suyashvashishtha#axl and this address can be dynamic eg: anyaddress0005446556#axl,newaddress#axl i only want this character from pa= to &. Please help me.
upi://pay?pa=suyashvashishtha#axl&pn=Suyash%20Vashishtha&mc=0000&mode=02&purpose=00
I was splitting it but the address is dynamic of different users this method is not working..
This question already has answers here:
How to match all email addresses at a specific domain using regex?
(5 answers)
Closed 7 years ago.
I have written one regex to take only email domain as yahoo.com.
"^[a-zA-Z0-9]+#yahoo\.com$"
but when i enter amit.sahay#yahoo.com, it says invalid email id.
Please help.
Thanks.
You didn't added .(dot) within your character class over here so your updated regex would be
^[a-zA-Z0-9.]+#yahoo\.com$
//^^ added (.dot) over here
This question already has answers here:
What is the best regular expression to check if a string is a valid URL?
(62 answers)
Closed 8 years ago.
We have regex to validate URL. I need a regex that will validate against it. Kindly help me in this.
URL for proper validation
var regexp = /(ftp|http|https)://(\w+:{0,1}\w*#)?(\S+)(:[0-9]+)?(/|/([\w#!:.?+=&%#!-/]))?/
What's for validating against, i.e it should not be a URL.
Just negate the regex using negative lookahead,
^(?!^((([A-Za-z]{3,9}:(?:\/\/)?)(?:[-;:&=\+\$,\w]+#)?[A-Za-z0-9.-]+|(?:www.|[-;:&=\+\$,\w]+#)[A-Za-z0-9.-]+)((?:\/[\+~%\/.\w-_]*)?\??(?:[-\+=&;%#.\w_]*)#?(?:[\w]*))?)$).*$
DEMO
This question already has answers here:
Regular expression for first and last name
(28 answers)
Regex for names
(27 answers)
Closed 8 years ago.
I'm creating a web store and I need to validate inputs with JavaScripts so the user doesn't have to submit a form to be given the PHP errors (although I'm also validating the form with PHP).
What I came up with is the following regex:
/^[a-zA-Z]+$/
But the above regex would only allow alpha characters whereas I also want to allow characters such as ' and - since obviously names may also contain these two characters. My question is, how to make a regex to allow alpha characaters AND the two characters above.
Besides that I also have one more question which just came in my mind, characters such as ă will pass the above validation ?
By adding them to your character group like so
/^[a-zA-Z'-]+$/
This question already has answers here:
Closed 10 years ago.
Possible Duplicate:
Validate email address in Javascript?
What is the best regular expression to check if a string is a valid URL?
I want to test that whether the string is url or not, right now I am stuck at this point.
I am using this regex to validate my URL
/(https|http):\/\/([_a-z\d\-]+(\.[_a-z\d\-]+)+)(([_a-z\d\-\\\.\/]+[_a-z\d\-\\\/])+)*/;
The problem with this regex is that it fails to validate this type of URL
http://www.abc/abc/
how to check that case.?