I am doing an exercise, the task is: I need to write a function which takes an argument a string and returns encoded string, for example: aaabbcccc -> should return 3a2b4c. I wrote the function, I created an object where I have all characters counted but I don’t know how to return value and key converted into the string. Here
Tag: string
Advice on how to resolve an issue with extracting only numbers from a string using JavaScript
I’m new to stackoverflow and would appreciate some advice to help me solve this problem. I have two strings that I want to extract numbers from String 1 = “12.3,Name1,3,4,Name2,35,Name3” returns [12.3,3,4,35] Which is the required result. String 2 = “12.3,22,Q” returns [12.322] Which is the incorrect result, It should be [12.3,22] I have commented on my code with the
How to replace list of words with tag at multiple indexes in Javascript
I have a response of parent string which I have to modify and replace with the provided start and end indexes. Expected Final Result: I tried below approach but was not successful Usage: please ignore my example names couldn’t think anything more Answer EDIT: My previous answer did not account to duplicate and did not use your indexes, so here
Regex expression not returning entire term
The intention of the regex is to capture substrings wrapped between twin expressions in parentheses, kinda like html tags. For example: And here’s my code Can anyone tell me why this doesn’t capture the entire thing? Answer The characters () are special in a regexp and must be escaped with a if you want to match them literally. And
How to join strings conditionally without using let in javascript
I have a situation where I’m trying to join the array of strings only if it has a value. I did using let variable, but I wonder can I do this using map. I’m very mindful on the position, so I used in this way. Will I be able to do this using map, filter and join? Answer If you
Store large amount of data in Javascript
Im receiving some file chunks in bytes format from my server and im collecting them into one variable in my frontend to download it later. And I can’t change my server conception (receiving a file sliced into chunks). My problem is that if the file is heavy (from 500MB), my variable length is starting to be very very big and
Replace single quote ( ‘ ) from each record in list JS
so I have a list like this: And I want to look like this: My problem is, I try every way i know to replace the single quote but, nothing work, so far so god, I got this code: But I still getting the same result, any idea of how can i do it? Thank you very much to all!
Extract and replace dynamic placeholders in javascript string
I need to understand and find a way to replace the occurences of placeholders in a string. I’m working on an app for the Magic, The Gathering tcg game. The text of the card contains a description and some symbols Let me explain better with an example: Some possible strings are “{W}{B}, {T}: Prevent all combat damage that would be
why doesn’t this work? it’s a simple console log inside a loop [closed]
Closed. This question needs debugging details. It is not currently accepting answers. Edit the question to include desired behavior, a specific problem or error, and the shortest code necessary to reproduce the problem. This will help others answer the question. Closed 4 months ago. Improve this question the output gives nothing. why is it this way? I want it to
Is there a one-liner to concatenate the key and values of a dict of unknown size into a string in JS?
I am trying to parse a dictionary into a string in one line as elegantly as possible. The string could have anywhere from 1 key value pair to 10. The dictionary I have: And I am trying to parse it into a query string converting it into: I know that using Object.keys and forEach i can traverse the Dict but