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notes:javascript_cheat_sheet

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notes:javascript_cheat_sheet [2026/11/02 06:05]
47.79.201.26 old revision restored (2026/09/02 00:59)
notes:javascript_cheat_sheet [2026/11/03 05:24] (current)
87.201.184.186 old revision restored (2026/09/15 01:55)
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     * In an external file called from either the head or the body e.g. <script src="abc.js"></script>     * In an external file called from either the head or the body e.g. <script src="abc.js"></script>
  
-==== Javascript Basic Syntax ====+==== 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 ====
 +
 +  * if {} else if {} else {}
 +  * switch (n) { case 1: stmt; break; default: stmt; }
 +  * for (var=start;var<=end;var=var+inc) {}
 +  * while (condition) {}
 +  * do {} while (condition) ;
 +  * //break// and //continue// both valid in a loop.
   *    * 
notes/javascript_cheat_sheet.1793628355.txt.gz · Last modified: 2026/11/02 06:05 by 47.79.201.26