Regex url parameters [closed] - javascript

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I don't no how regex works. but I have a url like:
http://localhost/BetaLeren/public/dashboard/general/video.php?video=13&time=19
but I want it that way:
http://localhost/BetaLeren/public/dashboard/general/video.php?video=13
How I can i do that with refex?
or is there a better way?

If you'll always have video= followed by time=, you could use the following regex:
const link = 'http://localhost/BetaLeren/public/dashboard/general/video.php?video=13&time=19';
const updatedLink = link.match(/^.+video=\d+/)[0];
console.log(updatedLink);
^ represents the beginning of the string.
.+ represents any character 1 or more times.
\d+ represents any digit 1 or more times.

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Javascript ignore html tag and add space to the string after every 2 characters [closed]

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I have a string with HTML in between. What I want to achieve is add a space in between after every 2nd character.
For example for input like below -
'<span>234567</span><span>34526754</span>'
'<span>23 45 67</span><span>34 52 67 54</span>'
How can I achieve this in JavaScript?
let str = '<span>234567</span><span>34526754</span>'
str.match(/(?<=\<span>).*?(?=<\/span>)/g).forEach(s=>{
str = str.replace(s, s.match(/.{2}/g).join(' '))
})
console.log(str)

Regular expression with specific characters in javascript [closed]

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I want to write a regular expression which would look like for ex: H005-2007-652764
First char should start with `H`
5th and 10th char should be `-`
Remaining all should be digits
Your requirements are perhaps not totally complete, but if I assume that you only want six digit characters at the end, something like the regex /H\d{3}-\d{4}-\d{6}/ would work. You can see it working here or in the snippet below:
const text = 'nonsense nonsense lorem ipsum H005-2007-652764 and then more nonsense';
const regex = /H\d{3}-\d{4}-\d{6}/;
console.log(text.match(regex));

RegEx for having minimum 3 chars also first and last char should be single quote [closed]

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I would like to have a RegEx (in javascript) to validate below conditions.
Value should have atleast 3 chars
First and last char should be single quote.
please advice how the regex should be?
Thanks in advance.
If you mean three chars total:
const regex = /'.+'/;
If you mean three chars plus quotes:
const regex = /'.{3,}'/;
More info:
https://javascript.info/regexp-quantifiers

regex find string between two strings [closed]

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How can i find a string between two strings with regex for example i want find example.com in string https://example.com/path OR http://example.com/path
var str = "https://example.com/path";
str.match(/(?!http:\/\/|https:\/\/)(.*)(?!\/)/g);
Why not use URL
const url = new URL("https://example.com/path");
console.log(url.hostname)
you want to know if the string contains it ?
console.log(!!('https://example.com/path'.match(/example\.com/)))
Also, check this :
https://www.w3schools.com/jsref/jsref_includes.asp
might be useful for you

Why does this javascript split function replace \1? [closed]

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I cannot understand the function used below that just splits a string on '.'.
Could you help me understand why it uses the extra replace statements?
function dotSplit (str) {
return str.replace(/\1/g, '\u0002LITERAL\\1LITERAL\u0002')
.replace(/\\\./g, '\u0001')
.split(/\./).map(function (part) {
return part.replace(/\1/g, '\\.')
.replace(/\2LITERAL\\1LITERAL\2/g, '\u0001')
})
}
Here, \1 means to match the character whose octal representation in Latin-1 encoding is 1. That character is SOH, or the start of heading character. What it does above is replace all occurrences of that with \u0002LITERAL\\1LITERAL\u0002, where \u2002 stands for the character STX(Start of text).
You can try it here:
https://regex101.com/r/n9LaJY/1

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