| --- |
| # Licensed to the Apache Software Foundation (ASF) under one or more |
| # contributor license agreements. See the NOTICE file distributed with |
| # this work for additional information regarding copyright ownership. |
| # The ASF licenses this file to You under the Apache License, Version 2.0 |
| # (the "License"); you may not use this file except in compliance with |
| # the License. You may obtain a copy of the License at |
| # |
| # http://www.apache.org/licenses/LICENSE-2.0 |
| # |
| # Unless required by applicable law or agreed to in writing, software |
| # distributed under the License is distributed on an "AS IS" BASIS, |
| # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| # See the License for the specific language governing permissions and |
| # limitations under the License. |
| |
| layout: docpage |
| title: AS3 |
| --- |
| |
| # ActionScript 3 (AS3) |
| |
| ActionScript is an object-oriented programming language originally developed by Macromedia Inc. (later acquired by Adobe Systems). It is a derivation of HyperTalk, the scripting language for HyperCard. It is now a dialect of ECMAScript (meaning it is a superset of the syntax and semantics of the language more widely known as JavaScript). Because both ActionScript and JavaScript are based on ECMAScript, most code you write in AS translates well to JS. One significant difference is that AS uses the concepts of classes and objects to structure how your code functions, while JavaScript does not have those concepts. |
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| When you get ready to compile and run your application, the Royale compiler translates AS-specific code into JS code organized into pseudo-classes, which then run just fine in a JavaScript world. |
