I am searching for a method to sift through an array and retrieve the last x number (or most recently added) of elements/indices from that array. While I understand that .pop() may be a possibility, I am uncertain about how to integrate pop with filter, or how to specifically return a given number of last elements/indices.
// Here is a recommended solution
const getNLastItems = (n, arr) => arr.slice(-n)
console.log(getNLastItems(3, [1,2,3,4,5]))
// Alternatively, you can achieve the same with filter
const getNLastItemsWithFilter = (n, arr) => arr.filter((_, index) => arr.length - index <= n)
console.log(getNLastItemsWithFilter(3, [1,2,3,4,5]))Upon clicking the filter icon in the top right corner, a menu will open. Within that menu, there are table header values with checkboxes. When a checkbox for a specific value is selected, the corresponding table column should be hidden. I have already impl ...
#include <stdio.h> #include <stdlib.h> #include <string.h> int ExtractValues(char input[], double output[]) { int index = 0, i, j, length; i = 0; j = 0; length = 0; char substring[50]; while(i < strlen(input) - ...
void performMatrixMultiplication(int size, double *matrixA, double *matrixB, double *matrixC) { for(int i = 0; i < size; ++i){ for(int j = 0; j < size; j++){ double cij = matrixC[i+j*size]; /* cij = C[i][j] */ f ...
For my project, I require numerous jQuery toggles to switch between text and icons. Currently, I am achieving this by using: $("#id1").click(function () { //Code for toggling display, changing icon and text }); $("#id2").click(function () { //Same co ...
As I dive into learning angular.js with .NET MVC, one major issue that keeps coming up is the fact that many tutorials advise referencing multiple controllers and services in the main (_Layout) page, which can make it quite messy. Although it may seem sim ...
I have successfully developed a Meteor App to manage requests. However, I am facing an issue where I need emails with default text to be sent whenever a request is created or updated. The challenge lies in the fact that I am operating within an intranet e ...
While attempting to install node_mouse, I noticed that in my node modules folder there was a .node file extension instead of the usual .js file. How can I execute node_mouse with this file format? After some research, it seems like node_mouse may be an a ...
The Scipy documentation states: The function zeros creates an array filled with zeros, the function ones creates an array filled with ones, and the function empty creates an array whose initial content is random and depends on the state of memory. By de ...
Hello there, I'm new to this so please bear with me for any obvious mistakes, thank you :) My goal is to have an image move from the center of the screen to the corner of the screen as you start scrolling. I've made some progress on this, but I& ...
Here's the code snippet I've been working with: <select #C (change)="changeSelect(zone.id, C.value)"> <option *ngFor="let town of townsLocal" [attr.value]="town.data" [attr.selected]="town.data === zone.town && 'selected& ...
I'm having an issue with mongo's $addToSet function not properly adding a Store to my stores array (where I have commented out seemed to work), resulting in duplicate IDs. Can anyone help me identify my mistake and suggest a solution? Thank you. ...
I'm a newcomer to React and running into some issues. Here is the API call I am currently using. Axios.post(Addr_currentRound_addOne, { gameId: gameId }).then(history.push("/leiter_tunierplan/"+gameId)); And here is the corresponding API c ...
<div id=""> <span>{{msg}}</span> </div> Assume that {{msg}} is a variable in JavaScript. Now, I aim to locate the parent tag of {{msg}} and replace its content with a new value using innerHTML, where {{msg}} serves as an identi ...
Looking to synchronize the loading of data and form... Let's start by reviewing the code: ngOnInit() { if (this.data.fromCalendar) { this.singleTraining(); } }, 200); this.formControl(); } formControl() { this.gib ...
Currently, I am working on developing an app using React and Material-UI. I have successfully implemented the AppBar component, but I am facing difficulties with setting up the Drawer functionality. The main issue I am encountering is an error message sta ...
Here you can find the code demonstration and behavior: No extensive explanation is necessary. Check out the StackBlitz demo by clicking on the first row to view its details. Then, click on the second row to see how the details from the first row are repl ...
In the realm of web development, numerous plugins cater to the implementation of HTML5's placeholder attribute in older browsers. The plugin we have opted for can be found here. Unlike some other alternatives, this particular plugin, with a few modif ...
After converting a list of records into JSON format, I am looking to transform this data into a hierarchical KendoTreeView. Here is the JSON data: [ { "id": 1, "name": "A", "parentID": 0, "hasItems": "true" }, { "id": 2, "name": "B", "parentID": 1, "has ...
At the beginning of my script, I set a default value for the name of a kmz file that I need for Google Maps. This value is stored in a window variable. window.kmz="Delaware_River_Basin.kmz" After running an ajax request, I receive the correct value for t ...
Currently, I am working on dynamically loading images from a JSON file using webpack-image-loader and React. Previously, I successfully used PNGs by placing the variable name in curly braces: import gratuita from 'images/gift-50.png'; <img ...