#Strict Mode In Javascript

JavaScript Strict Mode (“use strict”) Restrictions 1. No implicit global variables - Variables must be declared using let, const, or var 2. ‘this’ is undefined in functions - In normal functions, ‘this’ does not refer to global object 3. No duplicate parameter names - Function parameters must be unique 4. Cannot delete variables or functions - delete keyword cannot be used on declared variables 5. Octal literals are not allowed - Example: 010 is invalid 6. Octal escape sequences are not allowed - Example: “\012” is invalid 7. ‘with’ statement is not allowed 8. Cannot assign to read-only properties 9. Cannot add properties to non-extensible objects 10. eval() has its own scope - Variables inside eval do not leak outside 11. arguments object restrictions - No sync between parameters and arguments 12. Reserved keywords cannot be used as variable names - Examples: let, private, public, interface, etc. 13. Cannot assign to NaN, Infinity, or undefined 14. arguments.callee is not allowed 15. caller and callee access is restricted 16. Safer and stricter function declarations inside blocks 17. Prevents silent errors by throwing exceptions #JavaScript #StrictMode #WebDevelopment #FrontendDevelopment #codingtips

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setTimeOut() ✅ and setInterval() ✅ functions in JavaScript 🔥

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Example Of HTML and CSS

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Day 1 of teaching JavaScript from scratch 🚀❤️ . What is Console.log() and log ? console.log() Method is used to print any kind of variables defined before in it or to just print any message that needs to be displayed to the user. Parameters: It accepts a parameter that can be an array, an object, or any message. Return value: It returns the value of the parameter given. These are the following ways to use the console.log() method: . . . . . . . #day1 #javascript #webdeveloper #webdevelopment #coding #coder #programming #programmer #java #instagram #explore #explorepage

✨ how to learn JavaScript visually? 😳 link in bio! ☝🏻 thanks to @theavocoder we can understand how the JS engine and event loops 🔁 works! 👋🏻✅ super easy! 📌 JS engine is based on V8 engine used by Node.JS 🟢 and Chromium-based browsers 👩🏻‍💻 📌 Event loops 🔁 are the the patterns that waits and pushes events / messages / tasks in a program! ✨ on JavaScript (being single-threaded 🧵) when we call a function we need to learn that it gets added to “call stack” 🗣 📌 More of this information on the link in bio! Called “JavaScript visually 👌🏻” ☺️ happy coding! - - - #explore #javascript #developerlife #studygram #codingisfun #javascriptdeveloper #programming #softwareengineer #fyp