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JavaScript

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JavaScript is a script language used in web pages that allows web browsers to alter the content of a web page after it is rendered.

First standardized in 1997 as ECMA-262 and ISO/IEC 16262, JavaScript is one of two languages that comply with the ECMA Standard (Microsoft's JScript being the second, but it does not fully comply). JavaScript was developed as a dynamic, client side scripting language for the Netscape browser. Since that time, JavaScript has continued to develop.

 

  • Concepts
    • Events that JavaScript watches for
    • Event Handlers to trigger the script
    • Objects with properties and methods
    • Functions that perform specific tasks
  • Variables
    • Boolean
    • Number
    • String
    • Array
  • Objects
    • Object Properties
    • Object Methods
    • Built-in Objects
      • String
      • Math
      • Date
      • Document
      • Form
      • Window
  • Conditional Logic
    • Operators
    • If-Then
    • Case
  • Loops
    • for ()
    • while ()
  • Functions
  • Event Handlers
    • onAbort
    • onBlur
    • onChange
    • onClick
    • onError
    • onFocus
    • onLoad
    • onMouseover
    • onMouseout
    • onSelect
    • onSubmit
    • onUnload
  • Script placement
    • Within the <HEAD> tag
    • Surrounded by Comment Tags: <!-- and -->

 

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