The problem is as follows : We have defined a function, filteredArray, which takes arr, a nested array, and elem as arguments, and returns a new array. elem represents an element that may or may not be present on one…
So I have this function: export default function getObjectFromTwoArrays(keyArr: Array<any>, valueArr: Array<any>) { // StartPoint: // [key1,key2,key3], // [value1,value2,value3] // // EndPoint: { // key1: value1, // key2: value2, // key3: value3 // } if (keyArr.length === valueArr.length) { //…
I am trying to push values to already existing column of array type in laravel but instead it replaces the already existing values in the column when I update My code public function mergeSkillToArtisan(Request $request){ $identity = $request->post("identity"); $ids =…
My Code : https://codesandbox.io/s/quirky-wescoff-44n2by?file=/src/App.js When I hover over any element, always the last element of array is printed in console. I tried using ref, not sure if I am doing it right. I expected on hover over any element that…
am uploading multiple images to the database using Dropzone.js.am able to send the data to the controller in the function, but the images are sent as single images, and am able to upload the single image to the DB perfectly.…
i have this code that check for duplicates function hasDuplicateValue(array) { var existingNumbers = []; for (var i = 0; i < array.length; i++) { if (existingNumbers[array[i]] === undefined) { existingNumbers[array[i]] = 1; } else { return true; } }…
I am trying to convert tableBody.children (HTMLCollection) into an array so that I can loop through it. To do this I am using Array.from(tableBody.children and assigning it to a variable, tableChildren. The problem is when I call the variable it…
Can anyone explain me higher level examples when to use reduce() method in javascript
Let's say that I have a music app that showcases the tracks within a selected playlist. If I'm using React, I would have a state for the tracklist which would contain an array of objects. The object would contain information…
I am trying to play/show a video Advertisement(just a h1 tag) at each index value in the array. For example; the first item in the array is 5. So at 5 seconds, I want the video to pause and play…