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Javascript Syntax Development Tutorials, Guides & Insights

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Variables and Constants

Tutorial December 10, 2024
javascript

Variables in JavaScript can be declared using three keywords: var, let, and const.

  • Used in older JavaScript versions but largely replaced by let and const.
  • Example:

Hello World and Comments

Tutorial December 10, 2024
javascript

     Hello, World!

Comments are notes in the code that are ignored by the JavaScript engine. They are useful for explaining what the code does or for temporarily disabling parts of the code.