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I'm trying to figure out the best way to replace a string between 2 other strings. I believe regex is necessary for this.
Input string:
"http://domainabc.com/dir1/dir2"
Output string:
"http://domainxyz.com/dir1/dir2"
Only the domain will change - not the subdirectories.
Probably you're looking to change current domain name without bothering what the domain is. Try this code:
var s = "http://domainabc.com/dir1/dir2";
repl = s.replace(/\b(https?:\/\/)[^/]+(.+)$/, "$1domainxyz.com$2");
//=> http://domainxyz.com/dir1/dir2
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I need to write a JavaScript function which accepts IP range or subnets and validate it.
Like 10.0.0.1/24 should return true
10.0.0.1-10.0.0.10 should return true.
Use:
((\b|\.)(1|2(?!5(?=6|7|8|9)|6|7|8|9))?\d{1,2}){4}(-((\b|\.)(1|2(?!5(?=6|7|8|9)|6|7|8|9))?\d{1,2}){4}|\/((1|2|3(?=1|2))\d|\d))\b
http://regex101.com/r/aJ6jK2
This one also allows leading zeros:
((\b|\.)(0|1|2(?!5(?=6|7|8|9)|6|7|8|9))?\d{1,2}){4}(-((\b|\.)(0|1|2(?!5(?=6|7|8|9)|6|7|8|9))?\d{1,2}){4}|\/((0|1|2|3(?=1|2))\d|\d))\b
http://regex101.com/r/tT8sC5
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This is my radical expression:
var equation1 = "\\sqrt[4]{8}";
var equation2 = "\\sqrt[6]{x^2}";
How to get answer of this using javascript.
JavaScript's exponentiation function is Math.pow(base, exponent), so the 4th root of 8 is Math.pow(8, 1/4).
See https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Math/pow?redirectlocale=en-US&redirectslug=JavaScript%2FReference%2FGlobal_Objects%2FMath%2Fpow et al.
If you're asking how to parse those strings of yours and evaluate, that's a different thing altogether.
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I'm asking my users to write their domain name.
I'm looking for inputs of these types (=good):
http://www.Domain.com
http://Domain.com
https://www.Domain.com
https://Domain.com
www.Domain.com
Domain.com
http://no.matter.how.many.Domain.com
https://no.matter.how.many.Domain.com
no.matter.how.many.Domain.com
http://www.Domain.com/
https://www.Domain.com/
http://no.matter.how.many.Domain.com/
https://no.matter.how.many.Domain.com/
www.Domain.com/
Domain.com/
I'm want to reject any input that not in this format.
Bad inputs, for example:
http://www.Domain.com/page
http://www.Domain.com/page.html
http://www.Domain.com/page/page2
and so on...
Can you help me with a suitable RegEx?
Thank you!
You can use this regex
^(https?://)?[^/]+/?$
^depicts the start of string
$ depicts the end of string
? matches preceding group or char optionally..
Solution:
(https?://)?(www.)?([A-Za-z]+\.){1,}([A-Za-z]{2,})/?
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I have this original code. Can I know what is the meaning of this code? I confuse a bit.
if (/^\d{5}(-\d{4})?$/.test(zip.value)) {
I need to rewrite to zip code with 6 numeric digit excluding space. How should I do?
you can find your explanation here: http://rick.measham.id.au/paste/explain.pl?regex=%2F%5E%5Cd%7B5%7D%28-%5Cd%7B4%7D%29%3F%24%2F
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Suppose I have a number like 1234. I want to add new number 00 and , and € at the end. Now number will be like 1234,00€ I can not figure out.
That will work for you:
var value = '1234';
var formatted = value.replace(/(\d+)/, '$1,00€');
But, I strongly recommend you to read the answers in this question: How can I format numbers as money in JavaScript?
Update as #jared said, you can just concatenate the text: ,00€ to your number to just get the desired results.