Test whether a value has in its prototype chain a specified constructor as a prototype property.
JavaScript
2
0
Apache License 2.0
This package provides a function to test whether a value has a specified constructor in its prototype chain, mimicking the behavior of JavaScript's `instanceof` operator. It's part of the stdlib library, which is a standard library for JavaScript and Node.js focused on numerical and scientific computing. The package is useful for developers working on projects that require robust type checking and inheritance validation.
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Support the dependencies of stdlib-js/assert-instance-of
Detect native Symbol.hasInstance support.
Insert supplied variable values into a format string.
Has instance symbol.
Format an error message for production.
Test if a value is an array.
Test if a value is a boolean.
Boolean constructor.
Function constructor.
Number constructor.
Object constructor.
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 cases including unit tests, server side functional tests and browser tests. Built for scale
Minimal TAP output formatter.
Benchmark harness.
Support the repos that depend on stdlib-js/assert-instance-of
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stdlib-bot
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