is-arguments

Is this an arguments object? It's a harder question than you think.

Usage no npm install needed!

<script type="module">
  import isArguments from 'https://cdn.skypack.dev/is-arguments';
</script>

README

is-arguments Version Badge

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Is this an arguments object? It's a harder question than you think.

Example

var isArguments = require('is-arguments');
var assert = require('assert');

assert.equal(isArguments({}), false);
assert.equal(isArguments([]), false);
(function () {
    assert.equal(isArguments(arguments), true);
}())

Caveats

If you have modified an actual arguments object by giving it a Symbol.toStringTag property, then this package will return false.

Tests

Simply clone the repo, npm install, and run npm test