Test if an object has a specified property, either own or inherited.

Test if a value is a number having an integer value.

Test if a value is a string.

Data type constructor.

Test if a value is a boolean.

Insert supplied variable values into a format string.

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.