Check if the runtime is a web browser.

Test if a value is a function.

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

Test if a value is an array-like object containing only nonnegative integers.

Test if a value is an object.

Decompose a double-precision floating-point number into integral and fractional parts.

Round a numeric value to the nearest integer.

Return a high-resolution time difference.

Return the global object.

Proxies nodejs require in order to allow overriding dependencies during testing.

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.