Copy or deep clone a value to an arbitrary depth.

Test if a value is a plain object.

Write data to a file.

Invert an object, such that keys become values and values become keys.

Replace search occurrences with a replacement string.

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

Merge and extend objects.

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.