I have string in JS which where I need to add ‘ to the values. Example: task: task one, client: Mr jhon will be converted to task:’task one’, client: ‘Mr Jhon’ Think of these string as user entered search query. This is then sent to the backed for the searching. The values need t…
Tag: regex
Dynamically replace data based on matched RegEx JavaScript
I have a dynamic template string, similar to the following: I also have an object like so: How do I replace each template variable with the value presented in an object where the key is the text in the braces. For example: I have tried the following: The code above replaces all instances of text in curly brac…
Negative lookahead RegEx limited to an exact number of characters
How can I limit a negative lookahead RegEx to an exact number of characters? For example, this sentence should be denied… This car is not that fast! while this one should be allowed… The car you are about to see may not be that fast, but it’s very beautiful! The RegEx should match any senten…
Angular FormBuilder US Phone Number Regex (xxx) xxx-xxxx
I am trying to write an Angular Regex validator, which matches this and only this pattern for phone, spaces exact How can this be done? Working on this Code: Trying to add the space, after the first parenthesis, not sure if correct Answer You need to Add a literal space (or s to allow any whitespace) exactly …
JavaScript Regex find and replace multiple word with multiple word without using multiple replace function
I am using Angular7 and I want to change url defined in the environment file without concatenation. So I have a string in my component like this. I want to replace it with 2 ids using regex-only so I can get output like this. I do not want to use multiple replace calls. Thanks in advance!. Answer After some h…
Extract ip and uag from Cloudflare cdn-cgi/trace text result using regex in JS
Hi I am planning to use Cloudflare cdn-cgi trace service to get clients IP and User Agent results. If I fetch this link: https://www.cloudflare.com/cdn-cgi/trace, the result I am getting is in a text format. Result text example: I did some research and figured out I need to use Regex? But not sure how to extr…
How to write regex to match equal pairs of delimiters?
I have different dates like this: But the delimiter in the dates could be a dash – or a dot . or forward slash /. I have tried regex that works but I need to check if date is entered with non-matching delimiters like this DD-MM/YY then it should be invalid because the 1st delimiter is – and 2nd on…
Replace old value with new value excluding the children
The initial text of A, B, C, D, and the number need to be removed in the frontend because I require it in the backend. The HTML structure of table row is like this: Before Input: Current Output: If you notice that the selected option is also not visible. Is it because of the $(window).load() ? Required Output…
JS How to test if a string is only an abbreviation?
Any JS Regex expert that could help me return true if the word is only an abbreviation or else false? Tried this regex. But it also returns true for strings like. A.. A.B B.BA.. Greg D. Bot I’m trying to formulate a regex that could only return true for the following: A.B. A.B.C. A.B.C.D. And so on.. An…
Regex for Extracting the Country Name
What regular expression would extract the country name when used with any of the lines below? I’ve got a dropdown with all of these as choices and I’m trying to extract the country only, but I’m failing miserably since JavaScript doesn’t seem to support lookbehinds and I have no idea h…