JavaScript Essential for React
React: The library for web and native user interfaces Destructing Objects and Arrays Rest/Spread Operator Spread Operator (…) Expands (spreads) an array or object into individual elements. Rest Operator (…) …
JavaScript: Regular Express (or RegExp)
It be used for describing and matching patterns in the strings of text. 📌 Basic Syntax 🎯 Character Classes 🔢 Quantifiers 🎯 Groups & Capturing 🚀 Assertions & Anchors 🎏 …
JavaScript: Tagged template literals
In ES6 and later, strings literals can be delimited with backticks, everything between the ${ and the matching } is interpreted as a JavaScript expression. Everything outside the curly brace …
JavaScript: Number
Not-a-number, NaN Binary floating-point numbers (IEEE-754) ✅ Solution: Use Number.EPSILON for Comparison BigInt BigInt is a special data type in JavaScript used to store and manipulate large integers beyond the …
JavaScritp: Lexical Structure
☺ Whitespace & Line Breaks JavaScript ignores extra spaces, tabs, and new lines. Code is easier to read with proper indentation. ☺ Unicode You can use Unicode characters as variable …
JavaScript: Introductory
Javascript not only a script language, it is a efficient general-purpose language suitable for software engineering and projects with huge codebases. JavaScript was invented by Brendan Eich in 1995. It was developed for Netscape …
Deploy Next.js to Nginx
Make sure you next.config.js content To Build Next.js Source Code and Start for check Copy deploy files to remote server unzip deploy fiels to /var/www/next-app and use pm2 to run …
Jest: Mongoose
jest.fn(): Jest provides a mock function that replaces the real function so that you can monitor its behavior, for example:
