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JavaScript Introduction#

What Is the JavaScript?#

  • JavaScript is a dynamic computer programming language. It is lightweight and most commonly used as a part of web pages, whose implementations allow client-side script to interact with the user and make dynamic pages. It is an interpreted programming language with object-oriented capabilities.
  • JavaScript was first known as LiveScript, but Netscape changed its name to JavaScript, possibly because of the excitement being generated by Java. JavaScript made its first appearance in Netscape 2.0 in 1995 with the name LiveScript. The general-purpose core of the language has been embedded in Netscape, Internet Explorer, and other web browsers.
  • The ECMA-262 Specification defined a standard version of the core JavaScript language.
    • JavaScript is a lightweight, interpreted programming language.
    • Designed for creating network-centric applications.
    • Complementary to and integrated with Java.
    • Complementary to and integrated with HTML.
    • Open and cross-platform
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JavaScript Fundamentals#

  • JavaScript Syntax and Variables: Get familiar with JavaScript syntax, data types, and variable declarations.
  • Operators and Expressions: Learn about arithmetic, comparison, and logical operators, as well as expressions.
  • Control Flow: Understand conditional statements (if/else, switch), loops (for, while), and error handling (try/catch).
  • JavaScript Functions: Explore how to define and use functions to organize and reuse code.
  • Arrays: Learn how to work with arrays, perform common operations, and iterate over elements.
  • JavaScript Objects: Understand JavaScript objects, properties, methods, and object-oriented programming concepts.