regex

I have this regex const regex = new RegExp(/^${[a-z][a-z0-9_]*}/${[a-z][a-z0-9_]*}$/, 'g'); that matches the string "${total_123}/${number_items}". Next, I want to extract the substrings total123 and number_items and set them as const numerator = total_123 and const denominator = number_items. I'm not…

I need to extract numbers from the string for that I have preferred the following regix var str = "1 1/2 percentage"; var n = str.match(/[0-9]+([/.]d+)?/g); console.log(n); But I am not able to restrict negative numbers in the string .…

we have a string like this: const a = `3. n Trust me - I know about these thins.`; the 3. n part can be any number. and we want to remove it from the beginning of the string so…

how to replace spaces and newlines together with additional closing code ; in javascript? function main(){ var a = 'hello' console.log(a) } console.log(main.toString().replace(/[n ]/g,'')) output functionmain(){vara='hello'console.log(a)} I want function main(){var a='hello';console.log(a);}

I have inputs like - input1 = '[email protected] - Fri, 19 May 2023 10:13:23 GMT Test Task from [email protected]' input2 = '[email protected] - Fri, 19 May 2023 10:13:23 GMT Test Task from [email protected]' input3 = 'someName - Fri, 19 May…

I'm trying to build a regex to replace all the couples of symbols "$$" with some HTML tag, say, <someTag></someTag>. I use this regular expression but it doesn't cover all the cases: $$(S[^*]+S)$$ 'aaa $$123$$ c$ ddd'.replace(/$$(S[^*]+S)$$/g, '<a1>$1</a1>') // works…

let's say we have such url: const a = 'https://www.example.com/media/english/exaProns/p008-001600778.mp3?version=1.2.60' How can we extract the name of the track like: p008-001600778.mp3 I splited the url twice . one with / and one with ?. but there should be a better…