The **@stdlib/assert-is-error** package provides a tiny utility function, `isError(value)`, that returns `true` only when the supplied value is an instance of JavaScript’s built‑in `Error` (or any subclass such as `TypeError`, `RangeError`, etc.). It is meant for developers using the stdlib ecosystem—both Node.js and browser environments—who need a reliable, type‑safe way to detect error objects in their code.
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Support the dependencies of stdlib-js/assert-is-error
Return the prototype of a provided object.
Determine the specification defined classification of an object.
Test if a value is a boolean.
Check if the runtime is a web browser.
Implement prototypical inheritance by replacing the prototype of one constructor with the prototype of another constructor.
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.
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