JavaScript for BASIC Programmers: Difference between revisions
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When we designed our Translator, we were pleased to discover that almost everything in BASIC had a direct equivalent in JavaScript. Each BASIC statement could be turned into a JavaScript statement which did the same thing. (The reverse is not true: there are many features in JavaScript which do not have an equivalent in BASIC.) | When we designed our Translator, we were pleased to discover that almost everything in BASIC had a direct equivalent in JavaScript. Each BASIC statement could be turned into a JavaScript statement which did the same thing. (The reverse is not true: there are many features in JavaScript which do not have an equivalent in BASIC.) | ||
=== Variable Types === | |||
JavaScript variables are not explicitly typed: they get their types from whatever is assigned to them. It's very similar to BASIC's Variant type. | |||
Variables are declared with the VAR statement: | |||
{| class="wikitable" | |||
|- | |||
! BASIC !! JavaScript | |||
|- | |||
| Dim a || var a;<br>var b,c;<br>var d = 100; | |||
|} | |||
=== Assignment === | |||
=== IF statements === | |||
=== Operators === | |||
=== For loops === | |||
=== Statement Endings === | |||
Revision as of 12:58, 26 July 2017
AppStudio's BASIC is modelled on Microsoft's Visual BASIC. It runs on other operating system by translating the BASIC to JavaScript, a language which is supported on all platforms.
JavaScript is a powerful and flexible programming language. It's the standard programming language of the web. It's also the subject of Atwood's Law: "Any application that can be written in JavaScript, will eventually be written in JavaScript."
When we designed our Translator, we were pleased to discover that almost everything in BASIC had a direct equivalent in JavaScript. Each BASIC statement could be turned into a JavaScript statement which did the same thing. (The reverse is not true: there are many features in JavaScript which do not have an equivalent in BASIC.)
Variable Types
JavaScript variables are not explicitly typed: they get their types from whatever is assigned to them. It's very similar to BASIC's Variant type.
Variables are declared with the VAR statement:
| BASIC | JavaScript |
|---|---|
| Dim a | var a; var b,c; var d = 100; |