ZRTECH SOLUTIONS

JavaScript interview questions with answers

JavaScript is a high-level, dynamic, and interpreted programming language. It is a scripting language used for creating interactive and dynamic web pages and applications. The data types in JavaScript are: Number, String, Boolean, Null, Undefined, Object, and Symbol. Hoisting is a JavaScript mechanism where variable and function declarations are moved to the top of the […]

How do I create a login and signup page in react JS and node js with mongodb?

How do I create a login and signup page in react JS and node js with mongodb?

To implement a login and signup system with authentication in React and Node.js using MongoDB, you can follow these steps: These are the basic steps to create a login and signup system with authentication in React and Node.js using MongoDB. There are many ways to improve and extend this system, but this should give you […]

Create a CRUD Application with Node.js and MySQL

Introduction Node.js is an open-source platform for building fast and scalable network applications. MySQL is a reliable Relational Database Management System (RDBMS) and is a good choice for building CRUD (Create, Read, Update, and Delete) applications with Node.js. A CRUD application performs the following operations: Many data-driven applications run on top of the CRUD programming […]

How to run CocoaPods on Apple Silicon (M1)

2022 Nov Update If you can use Homebrew to manage cocoapods. 2021 Solution Additional Information #1 For anyone seeing the arch: posix_spawnp: gem: Bad CPU type in executable error, you must first install Rosetta. Thanks, @Jack Dewhurst #2 If you run pod commands pretty often, setting up an alias in .zshrc or .bash_profile might be handy. Thanks, @theMoonlitKnight for the suggestion.

Flutter doctor error – Android sdkmanager tool not found. Windows

Just like you, I have Android Studio installed, the key is to install Android SDK Command-line Tools, steps being: At that point, you will be prompted to accept the SDK license and the command line tools will be installed. Your license issue should now be resolved. FYI, the command line tools will add a new folder cmdline-tools inside […]

Flutter doctor –android-licenses gives a java error

Installing Android SDK Command-line tools from Android SDK Manager did the job for me. Alternative to step #1: WINDOWS: File > Settings (Ctrl+Alt+S) / MAC : Android Studio > Preferences This fix works for Windows, Linux and Mac OS X. If you are facing a problem in spite of the above steps, you can try upgrading your system to JDK 8. Official documentation of upgrading to JDK 8 is available here.