ECMAScript is an object-oriented scripting language that connects through interfaces called Document Object Models (DOMs) to applications, especially to the server side ([web servers]?) and the client side ([Internet browsers]?) of internet applications. Many web sites use client-side ECMAScript technology to create powerful dynamic web applications. It may use Unicode and can evalutate regular expressions and Javascript expressions contained in a string (eval function).
Environment When Javascript code is used in a HTML page it must be preceded by
<script language="JavaScript"><!--and followed by
// --></script>
Data structures
The primary data structure is an [associative array]? similar to hashes in the Perl programming language. Strings are objects. (To do: more information on the language)
Control structures
If ... else
if (condition)
{ statements1}
[else { statements2}]
While loop
while (condition)<br>
{ statements}<br>
Do ... while
do
{statements}
while (condition);
For loop
![[Home]](wikipedia.png)
for ([initial-expression;] [condition;] [increment-expression])</br>
{ statements}
Switch expression
switch (expression){ case label : statement;break;case label : statement;break;...default : statement;}
User interaction
Most interaction with the user is done by using HTML forms which can be accessed from Javascript. However there are as well some very simple means of communicating with the user
External links: