Javascript – find all Possible Decoding of given digit sequence
Here's the problem: Assume that the value of a = 1, b = 2, c = 3, ... , z = 26. You are given a numeric string S. Write a program to return the list of all possible codes…
Javascript – Total sum recursion function
I'm trying to recursively go through an array, collect all the values and sum them. Any attempts to do this result in a stack overflow. Tell me how to implement a function 1) using an additional variable 2) without using…
Laravel – Validate API request attributes recursively
I am developing dynamic query builder for the admin users and for the same I am implementing POST API request to store all conditions together in database. I am stuck with the validation of POST json. I tried different ways…
Javascript – Angular – Recursive RxJS Observables Execution Order Issue
I am facing an issue with the execution order of recursive RxJS Observables in an Angular application. I have a service, RefreshReportService, which is responsible for refreshing reports. The refreshreport method is designed to refresh a report and its nested…
Javascript – There is a lock of 4-digit PIN. The digits to be chosen from 0-5 for the keys. Find all possible combinations of keys
The problem goes like this: There is a lock of 4-digit PIN. The digits have to be chosen from the digits 0-5 for the key to unlock. We need to Find all possible combination like 0001, 0002, 0003, 0004, and…
Javascript maximum call stack size even though recursive function call itself with an accumulator
I have an object whose value can be any type. const data = { a: { aa: 50, ab: 'hello', ac: 'xx_1' }, b: 50, c: [ { ca: 100, cb: 'by', cc: 'xx_2' }, { ca: 101, cb: 'by1',…
Php – Recursively filter a multidimensional array using a 2d array of whitelisted key paths including wildcards
I have a multidimensional array with an indeterminant depth. I want to keep only some keys depending a collection of paths, but I need a generic, recursive function and not a hardcoded filter. Example: $originalArray = array( 'key1' => array(…
Javascript – how to search and loop array of object for particular key using recursion
I have a array of objects Some objects have id and some are not those having id can present with either "split" or "relation" key not both inside split there can be another split or relation now I need to…
Reformatting a json tree using python
I have a json tree at hand, I want to reformat it. **The input is somewhat like : ** [ { "archive":{ "LOGS":{ "_files":[ "zomp_download_20220601170001.log", "zomp_download_20220626170002.log" ] }, "SUMMARY":{ "_files":[ "SUMMARY_zomp_report_2022-04-01.csv", "SUMMARY_zomp_report_2022-06-25.csv" ] }, "_files":[ "lexter_report_2022-04-01.csv", "lexter_report_2022-06-25.csv" ] } }…
Javascript – How to do recursion by hand?
I am having a brain lapse in recursion and trying to get the math right. The function gives me what I want but my brain does not. let recurseSum = (x, n) => { if(n === 1){ return x} return…