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

Test if a value is a regular expression string.

Test if a value is a string.

Command-line interface.

Read the entire contents of a file.

Read data from stdin.

Return a regular expression to match a newline character sequence.

Standard input.

Repeat a string a specified number of times and return the concatenated result.

Insert supplied variable values into a format string.

Create a regular expression from a regular expression string.

Format an error message for production.

Check if the runtime is a web browser.

Boolean indicating if the current process is running on Windows.

Absolute pathname of the executable which started the current Node.js process.

Discrete uniform distributed pseudorandom numbers.

Replace search occurrences with a replacement string.

tap-producing test harness for node and browsers

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

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.