Test if an object has a specified property.

Test if a value is a boolean.

Test if a value is a plain object.

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

Insert supplied variable values into a format string.

Format an error message for production.

Float64Array.

Test if a value is a string.

Return the enumeration constant associated with a supported Z-test alternative hypothesis value.

Create a one-sample Z-test double-precision floating-point results object.

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.