React Navigation is used for managing the transition between multiple screens. It is written in JavaScript and does not directly use the native navigation APIs on iOS and Android. * Install the required packages in your React Native project: npm install @react-navigation/native * Also installing dependencies into a bare react native
Stack Navigator used for transition between screens.When you navigate to new screen,a new screen is placed on top of stack and when you navigate back the screen is removed and render previous screen To use this navigator, install the necessary react native package by running following command npm
Login: This is the login page of stock market app. In that Login page you can enter your phone number. After entering phone number click on continue button you will get an OTP on that number and after entering the received OTP in the OTP field, click on the VERIFY
The flex property sets the flexible length on flexible items. A flex container expands items to fill available free space or shrinks them to prevent overflow. Basics and terminology: * main axis – The main axis of a flex container is the primary axis along which flex items are laid out. Beware,
Introduction of Redux Flow * Redux is a JavaScript framework for managing state in an application * Redux follows one direction flow of data. * It starts in the view.View means the item on a screen that a user sees. * If a user clicks a button or types something in. This is
CSS has several different units for expressing a length. Many CSS properties take "length" values, such as width, margin, padding, font-size, etc. Length is a number followed by a length unit, such as 10px, 2em, etc. vwRelative to 1% of the width of the viewport* vhRelative to 1%
The ::before and ::after pseudo-elements are incredibly versatile tools in the CSS toolkit. They allow you to insert content onto a page without it needing to be in the HTML. The ::before selector inserts something before the content of each selected element(s). The ::after selector inserts something after the
What is a Test Link? TestLink is an open-source test management tool that is used for project management, bug tracking, and test management. It is a web-based tool that allows you to create test projects and document test cases with ease. TestLink supports both manual and automated testing, and it
Optional chaining is also known as Null Safety. The optional chaining (?.) operator accesses an object's property or calls a function. If the object accessed or function called using this operator is undefined or null, the expression short circuits and evaluates to undefined instead of throwing an error. Syntax:
Mantis Bug Tracker is a free and open source, web-based bug tracking system. The most common use of Mantis Bug Tracker is to track software defects. Advantages of Mantis Bug Tracker : 1) It is open source tool 2) Mantis supports multiple user access projects per example. 3) Email notification to
Storing data in external resource, fetching data from external resource and utilizing in test script. External resource can be 1) property file 2) Excel sheet 3) Data Base Advantages of Data Driven Testing : 1) Allows to test application with multiple sets of data values during Regression testing. 2) Test data
1. Install and configure "Node Version Manager" i.e. nvm - GitHub - nvm-sh/nvm: Node Version Manager - POSIX-compliant bash script to manage multiple active node.js versions 2. Use latest LTS version of NodeJS using nvm (right now it's Node v20.9.0(LTS)
$lookup (aggregation) $lookup is thus a stage in the MongoDB aggregation pipeline. $Lookup is used to perform a left outer join between two collections in a MongoDB database. A left outer join combines all the documents or entries on the left with matching documents or entries on the right. Syntax:
MongoDB supports logical query operators. These operators are used for filtering the data and getting precise results based on the given conditions. The following table contains the comparison query operators: Matching values using $and operator: In this example, we are retrieving only those employee’s documents whose status is ACTIVE
MongoDB uses various comparison query operators to compare the values of the documents. The following table contains the comparison query operators: Matching values using $nin operator: In this example, we are retrieving only those employee’s documents whose name is not Daisy or Amruta. //Example db.q_employee.find({name:
Create a new Spring Boot project using start.spring.io 1. Open your browser and navigate to the https://start.spring.io. 2. From the “Project” dropdown, select “Gradle — Kotlin”. 3. Choose “Kotlin” as the language. 4. In the “SpringBoot” section, input the desired Spring Boot version — in this case,