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notes:javascript_cheat_sheet [2026/06/12 10:26]
45.164.70.2 old revision restored (2026/06/04 12:30)
notes:javascript_cheat_sheet [2026/06/13 11:28] (current)
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 ===== Javascript Cheat Sheet ===== ===== Javascript Cheat Sheet =====
  
-This is a summarized form of the [[http://www.w3schools.com/js/default.asp | JavaScript Tutorial]].+This is a summarized form of the [[http://www.w3schools.com/js/default.asp | Javascript Tutorial]].
  
-For reference JavaScript specifications can be found [[http://developer.mozilla.org/en/JavaScript_Language_Resources | here]] .+For reference Javascript specifications can be found [[http://developer.mozilla.org/en/JavaScript_Language_Resources | here]] .
  
 ==== What is Javascript ==== ==== What is Javascript ====
  
   * JavaScript is the most popular scripting language on the internet and works in all major browsers.   * JavaScript is the most popular scripting language on the internet and works in all major browsers.
-  * It is a lightweight, interpreted language that is embedded into webpages to add interactivity. 
-  * JavaScript can read and write HTML page elements, react to events, validate data, create cookies. 
-  * JavaScript was invented by Brendan Eich of Netscape but is now known officially as ECMAScript (current version is ECMA-262). 
-  * A simple "Hello World" example <code html> 
-<script type="text/javascript"> 
-<!-- 
-document.write("Hello World!"); 
-//--> 
-</script> </code> 
-  * JavaScript code may be located 
-    * In the head - executed when called 
-    * In the body - executed while loading 
-    * In an external file called from either the head or the body e.g. <script src="abc.js"></script> 
- 
-==== Basic Syntax ==== 
- 
-  * JavaScript is case-sensitive. 
-  * Statements may omit the final semi-colon but should not. 
-  * Blocks may be grouped together using curly braces { }. 
-  * JavaScript uses java-style comments: // and /* */. 
-  * JavaScript variables are case-sensitive and must begin with a letter or underscore. 
-  * Variables are automatically declared when first used but should be explicitly declared using e.g. var a = 5; 
-  * JavaScript uses standard C/Java operators e.g. +-*/%, ++, +=, &&, ||, !, + (concatenation). 
-  * JavaScript uses C/Java comparators >,>=,==, !=, a?b:c. It also uses === to test equality of value and type. 
- 
-==== Basic Structures ==== 
- 
-  *  
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