I’ve been working on some challenges and this is one of the challenges I’ve been unable to get a solution of. This task is like this: Write a function that takes an array (a) and a value (n) as arguments Save every nth element in a new array Return the new array This is the output I’m expecting: This is
Tag: function
How to add Current Date and Time into Table?
how can I add the current date and time with this format: 2022-07-17 17:50:20? I already managed it with an input value but I need the current time. Answer You should use built-in Date object in Javascript, like this: By the way, I suggest you make all your vars into lets as that’s the current standard. There’s a very fine
How to find longer Strings from an Array?
I want to find Longer Strings from this array: const myArr = [“first”, “second”, “third”, “fourth”, “fifth”, “sixth”, “seven”, “eighth”] in this array “second”,”fourth”,”eighth” has length of 6. I want to return these in an array. expected output is: [“second”,”fourth”,”eighth”] but returns =[“first”,”second”] Answer Easier if you use filter instead: That returns: Or, as Sash mentions below, it can be
Sweet Alert 2 Yes/No – How to integrate a function for PHP?
I use Sweet Alert 2 for nice dialogs. Now I want to use it for a security question if an database entry should be delete or not. It’s no problem to show the dialog, but I can’t find a way to integrate a function if the delete is confimred. Could anyone please help me? Thats the code for now: Answer
implement a memoization function in JavaScript [closed]
Closed. This question needs details or clarity. It is not currently accepting answers. Want to improve this question? Add details and clarify the problem by editing this post. Closed last month. Improve this question The function that I need to implement should take a function to memoize, then return a new function that remembers the inputs to the supplied function.
Using regex to get all consonants until a vowel appears
I’m trying to create a higher order function that would do two things. First: it would check the first letter of a string if it’s a vowel, if it is, it would append at the end of the string ‘way’. I’ve done so with this code: Then I need to code to run a specific task while checking for consonants
How I can reset variable value when function end?
I have such function and global variable (as array): Every call of this function push some data to array. In this function I use recursion. So how i can clear this array only when this function will end it’s work. Answer You can call the recursion function inside another function this way you can run anything you want when the
Why does my app connect to my TCP server multiple times in my react native app?
When I run the code, it connects to my TCP server multiple times even though I am expecting it to connect only once The output is also changing a lot and it does not seem to follow how I programmed it to look. The output seems to be flicking from many other outputs. Answer React triggers your function multiple times
return statement in function that convert decimal to binary numbers
I’m trying to understand how to use functions in JS. This code converting decimal numbers to binary numbers: but when I’m trying to put this code into a function, the function returns only the first or the last value. What am I doing wrong? Answer You have to store the result of each iteration in array. Also you should declare
Javascript: How to populate arguments passed to a function?
I have this code that returns cartesian product of three arrays: For example, like this: However, I don’t always want my number series to be made out of three numbers. Sometimes, I want four, five, or any other number. That is why I would like to have an argument that would populate the arguments inside cartesian() function call, accordingly. I