How to use multiple router outlet in Angular?
In Angular, you can use multiple router-outlet directives to render components in different parts of your template. To use multiple router-outlet directives, you need to give each of them a…
What is router outlet in Angular?
In Angular, a router-outlet is a directive that acts as a placeholder for the components to be displayed when a user navigates to a particular route. It is used in…
Why const value is not changed but alter const object value?
In JavaScript, a constant declared using the const keyword cannot be reassigned, but the properties of the object assigned to a const variable can be altered. This is because const…
What is shallow copy and deep copy in JavaScript?
In JavaScript, a shallow copy is a copy of an object that contains references to the same objects as the original object, rather than copies of the objects themselves. This…
What is rest and spread operator in JavaScript?
The “rest” operator and the “spread” operator are two important features in JavaScript that allow you to work with arrays and objects in a more convenient and efficient way. The…
What is call by reference and call by value in JavaScript?
In JavaScript, function arguments are passed by value, not by reference. This means that when you pass an argument to a function, a copy of the value is passed, not…
How to update the version of an Angular library?
Updating the version of an Angular library can be done through the following steps: npm install It is important to take a backup of the project before updating the library…
What is the use of the “angular.json” file?
The “angular.json” file in Angular is a configuration file that provides information about the project and its associated dependencies, as well as other build-related configuration options. The “angular.json” file contains…
What is the purpose of the “main.ts” file in Angular?
The “main.ts” file in Angular is the entry point of the application and its main purpose is to bootstrap the root module of the application. This file is responsible for…
What is a difference between absolute and relative position?
In CSS, position property is used to specify the position of an element. There are two main position values: absolute and relative. Relative positioning is used to set the position…
What is bootstrapping in angular?
Bootstrapping in Angular refers to the process of creating and starting a new Angular application by loading the root module, which bootstraps the application to run in the browser. In…
What is lazy loading in Angular explain with an example?
Lazy loading is a design pattern used in Angular to load parts of a web application only when they are needed. It’s a technique for optimizing the loading speed of…
Write a program binary search in JavaScript?
Binary search is an efficient algorithm for finding an item from a sorted list of items. The basic idea behind binary search is to divide the list into halves repeatedly…
What is forkjoin in rxjs?
In RxJS, the forkJoin operator is used to combine multiple Observables into a single Observable, where the combined observable emits an array of values representing the latest value from each…
Can you name some of the new form elements in HTML5 and their usage?
Yes, HTML5 introduces several new form elements to make it easier to create and validate forms. Here are some of the new form elements in HTML5 and their usage: These…