Test if an object has a specified property.

Test if a value is a string.

Command-line interface.

Read the entire contents of a file.

Insert supplied variable values into a format string.

Format an error message for production.

Check if the runtime is a web browser.

Boolean indicating if the current process is running on Windows.

Write data to a file.

Absolute pathname of the executable which started the current Node.js process.

Replace search occurrences with a replacement string.

Return an array of an object's own enumerable property names.

Return an array of an object's own enumerable property values.

tap-producing test harness for node and browsers

Yet another JS code coverage tool that computes statement, line, function and branch coverage with module loader hooks to transparently add coverage when running tests. Supports all JS coverage use ca

Minimal TAP output formatter.

Benchmark harness.