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Exciting New JavaScript Concepts you Need to Know

Discover key JavaScript concepts, from scope and closures to async/await and modern ES6 features, to improve your coding skills and build better applications. Read More : https://tinyurl.com/27jt5y6v

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Exciting New JavaScript Concepts you Need to Know

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  1. JAVASCRIPT ESSENTIALS 8 Concepts You Must Know

  2. WHAT WE’LL COVER Why JavaScript? JavaScript Fundamentals: 5 Key Things to Know 1.Scope 2.“this” Keyword 3.Prototypes and Inheritance 4.Scope and the Differences Between var, let, and const 5.ES6 and Beyond

  3. WHY JAVASCRIPT? It’s everywhere—from browsers and server environments to mobile and IoT devices. Constant updates and new features = better, resilient code. With JavaScript’s dominance in the tech industry, keeping up with the latest features ensures you stay competitive in job markets.

  4. JAVASCRIPT FUNDAMENTALS 5 KEY THINGS TO KNOW

  5. SCOPE Determines the accessibility of variables, functions, and objects within different parts of code. GLOBAL SCOPE 1 Variables that are declared outside any function and are globally accessible. LOCAL SCOPE 2 Variables that are declared within a function and are confined to that function. BLOCK SCOPE 3 Introduced with ES6, variables that are declared with let and const are confined to the nearest pair of curly braces {}.

  6. “THIS” KEYWORD The value of this in JavaScript depends on how a function is called. It can refer to different contexts, such as the global object (in non-strict mode), an object on which a method is called, or even explicitly defined using call(), apply(), or bind(). PROTOTYPES AND INHERITANCE JavaScript uses prototypal inheritance, where objects inherit properties and methods from other objects.

  7. SCOPE AND THE DIFFERENCES BETWEEN VAR, LET, AND CONST

  8. ES6 AND BEYOND ES6 introduced a host of modern features that simplify handling complex operations, improve code readability, and enable safer access to data. Optional Chaining (?.): a feature that allows you to safely access deeply nested properties of objects without having to check if each property in the chain exists. Nullish Coalescing (??): a feature that provides a default value only when the left-hand operand is null or undefined. BigInt: a new numeric primitive introduced to handle arbitrarily large integers. globalThis: an object that provides a standard way to access the global object, regardless of the environment you’re working in.

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