Syntax

Main article: JavaScript syntax

As of 2008, the latest version of the language is JavaScript 1.8. It is a superset of ECMAScript (ECMA-262) Edition 3. Extensions to the language, including partial E4X (ECMA-357) support and experimental features considered for inclusion into ECMAScript Edition 4, are documented here.

Sample code:

var el, ev, tabContent, tabContents, currentTab, currentID, tabPac, tabPic;
var pacIDvar, picID, tabHelp;

// Mouseover commands to change look of buttons & text, etc., on playlist
document.onmouseover = function(e) {
       getElementByEvent(e);
       switch (el.className) {
               case 'tab':
                       el.className = 'ovrtab';
                       break;
               case 'off':
                       el.className = 'ovr';
                       break;
               case 'bti2f wbd':
                       el.className ='bti2t wbd';
                       el.parentNode.className = 'bto2t';
                       if (el.id.charAt(0)=='w') {
                               window.status = type[currentTab.id.charAt(1) - 1][el.id.substring(1)][0];
                       } else if (el.id.charAt(0)=='p') {
                               window.status = type[currentTab.id.charAt(1) - 1][el.id.substring(1)][1];
                       }
                       break;

       }
       switch (el.id) {
               case 'inHip':
                       el.style.color = '#000000';
                       break;
       }
}