Test if an object has a specified property.

Test if a value is a number.

Test if a value is a plain object.

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

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

Test if a value is a string.

Test if a value is an array of strings.

Command-line interface.

Read the entire contents of a directory.

Read the entire contents of a file.

Capitalize the first character in a string.

Insert supplied variable values into a format string.

Remove punctuation characters from a string.

Copy or deep clone a value to an arbitrary depth.

Return a filename extension.

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

Format an error message for production.

Create a filled generic array.

Test if a value is an array.

Check if the runtime is a web browser.

Test if a value is an array-like object containing only plain objects.

Test if a value is a regular expression.

Boolean indicating if the current process is running on Windows.

Write data to a file.

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

Return a regular expression to match a newline character sequence.

Replace search occurrences with a replacement string.

Current year.

Return the first index at which a given element can be found.

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.

Benchmark harness.