JavaScript Reporter 1.0

JavaScript Reporter will perform syntax checking, variable type and flow analysis on individual JavaScript files; and adds type-analysis across files for a group of related JavaScript files. It detects and reports errors in one step, eliminating the need to invoke a browser simply to catch syntax and typographical errors.
For Microsoft Windows, Reporter includes a launcher that provides simple, intuitive drag-and-drop interface to Javascript Reporter. JavaScript Reporters plugin for Eclipse integrates the power of JavaScript development within the popular Eclipse framework. Users of make will find Reporters command line interface powerful and productive.
JavaScript Reporter checks for syntactically illegal JavaScript
JavaScript syntax errors include typographical errors, missing quotes, unmatched delimiters (braces, brackets, and parentheses), and incorrect punctuation. Syntax errors in JavaScript programs cause an immediate end to code execution, so syntax errors that are discovered during testing must be corrected one at a time. With JavaScript Reporter, all the syntax errors in a JavaScript program can be found in a single step.
JavaScript Reporter detects dead code and unused variables
Unreachable, dead code and unused variables may indicate program errors. JavaScript Reporter detects code that cannot be reached and variables that are never used, and issues warnings that help determine if such code and variables usage is intentional.
JavaScript Reporter finds incorrect browser primitive arguments and misused return values
Using its DOM Dictionary, Reporter finds errors if a program accesses a browser primitive with the wrong arguments or uses the return value incorrectly. Reporter is flexible, and allows its DOM Dictionary to be modified to meet custom site requirements.
JavaScript Reporter ensures correct and consistent JavaScript variable and function type usage
JavaScript Reporter determines the types of all JavaScript variables and functions, and checks for consistent usage. JavaScript does not provide a way to declare the type of a variable, or the return type of a function. As a dynamically-typed language, it allows variables to hold different data types at different times, even though this results in many difficult to resolve bugs.
Applying DHIs patent-pending technologies, JavaScript Reporter infers the types of all expressions by carefully and deeply analyzing their usage, without requiring guidance from the programmer. By combining this deep analysis with its built-in dictionary describing all the objects and methods defined for JavaScript and the DOM, Reporter can find two broad classes of problems.
When Reporter cannot determine any type at all for a variable or function in a program, it often means that there is a misspelling, or that an initialization is missing. An error of this type is called an undetermined type error. Other times, Reporter determines that a value has two or more types at different times in the program. This is called a type mismatch error. The ability to discover these two types of errors allows Reporter to identify a wide range of different problems, including:
Using variables inconsistently. For example, a variable that holds a string in one part of the program may be mistakenly used as a boolean in another part of the program.
Misspelling DOM method and property names.
Misspelling user-defined method and property names.
Passing the wrong number of parameters to a method or function.
Passing parameters of the wrong type to a method or function.
Applying a JavaScript operator (such as "-" or ">") to values of the wrong type.
Version restrictions:
- 15-day trial license