stdlib-js/assert-is-property-key

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

Test if a value is a string.

stdlib TypeScript type declarations.

Detect native Symbol support.

Test if a value is a boolean.

Number constructor.

Symbols.

Symbol iterator.

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 cases including unit tests, server side functional tests and browser tests. Built for scale

Minimal TAP output formatter.

Benchmark harness.

Test if a value is a symbol.