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--- notes:javascript_cheat_sheet [2026/11/02 07:25]
47.79.200.57 old revision restored (2026/09/19 07:40)
+++ notes:javascript_cheat_sheet [2026/11/03 05:24] (current)
87.201.184.186 old revision restored (2026/09/15 01:55)
@@ Line 27: / Line 27: @@
   * 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 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;
@@ Line 36: / Line 36: @@
   * if {} else if {} else {}
-  * for (var=start;var%%<=%%end;var=var+inc) {}
+  * 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.
-  * for (element in array) {}
+  *
-  * for (property in object) {}
-  * switch (n) { case 1: stmt; break; default: stmt; }
-  * function name(var1,var2,...) {}
-  * \", \n, \t, \r, \', \&, \\
-==== Events, Error Handling and Popups ====
-  *  try { throw "errname"; } catch(err) {}
-  * onerror=handleErr; handleErr(msg,url,linenum)
-  * if handleErr returns false, browser displays a standard error message in the JavaScript console.
-  * an alert box just has an OK button - alert("msg")
-  * a confirm box returns true if the user clicks OK, false if he clicks cancel - confirm("msg")
-  * a prompt box allows the user to enter a value. It returns true if the user clicks OK, false if he clicks cancel - prompt("msg","defaultvalue");
-  *  JavaScript functions can be registered to run on certain events (event="jscode" in an HTML element):
-    * onunload, onload (page or image), onresize, onabort
-    * onfocus, onblur, onclick, ondblclick
-    * onmouseover, onmouseout, onmousemove
-    * onchange, onsubmit, onreset, onselect
-    * onkeydown, onkeypress, onkeyup
-    * onmousedown, onmouseup

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