More than just a cheat sheet or reference, JS Pro provides beginners with a simple introduction to the basics, and experts will find the advanced details they need. Loads of extras are included: syntax, variables, operators, conditionals, looping, events, exceptions and more.

The JavaScript properties/functions/methods are categorized and searchable. Each detailed information screen contains a description, parameters, examples, browser compatibility, and more. In addition, most of the examples include the actual output.

The JavaScript properties/functions/methods are broken into the following categories:
JavaScript Objects (Array, Boolean, Date, Math, Number, RegExp, String, String-HTML Wrapper), Global Properties/Functions.

Along with the following additional JavaScript information:
- JavaScript Introduction
- Using JavaScript
- Placing JavaScript
- Statements
- Variables
- Operators
- Comparisons
- Conditionals (if, if...else, if...else if...else, switch)
- Looping (for, while, do...while,
- Functions
- Events
- Exceptions
- Popup Boxes

* No internet connection necessary! Works off-line *

***** JavaScript is a registered trademark of Oracle Corporation *****


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What’s New

Version 3.6

- Updated for iOS 11
- Minor updates and corrections
- More updates coming soon!

Ratings and Reviews

4.5 out of 5
2 Ratings

2 Ratings

ubiquitoid ,


The information is accurate, well organized, and very nicely presented. It's also very comprehensive as "quick guide." Call me a geek, but it even makes a good "cover to cover" read. Well worth the current $0.99 price.

Fuzzhouse ,

Simple app, could be better

The app is pretty straight forward. The layout is nice and clean, very easy to read. But the search function could use a lot of update to include searching the content instead of just the index.

For example, if you want to see how to write an if-else statement, you have to search "conditonals" because search "if" or "else" will give you "shift()", "unshift()", and "IFrame". So if you are not familiar with the coding already, this is very difficult to use.

chopnation90 ,

Great app!

I'm new at JavaScript and happened to stumble across it the other day. Had to get it! Big ups to the development team behind the app, too. Well done, mates!


Tom Bigelow
5.6 MB

Requires iOS 8.0 or later. Compatible with iPhone, iPad, and iPod touch.



Age Rating


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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