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rdrew
f035d16951
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2 weeks ago | |
|---|---|---|
| .. | ||
| .github | 2 weeks ago | |
| test | 2 weeks ago | |
| .editorconfig | 2 weeks ago | |
| .eslintrc | 2 weeks ago | |
| .gitattributes | 2 weeks ago | |
| .nycrc | 2 weeks ago | |
| CHANGELOG.md | 2 weeks ago | |
| LICENSE | 2 weeks ago | |
| README.md | 2 weeks ago | |
| index.d.ts | 2 weeks ago | |
| index.js | 2 weeks ago | |
| package.json | 2 weeks ago | |
| tsconfig.json | 2 weeks ago | |
README.md
is-map 
Is this value a JS Map? This module works cross-realm/iframe, and despite ES6 @@toStringTag.
Example
var isMap = require('is-map');
assert(!isMap(function () {}));
assert(!isMap(null));
assert(!isMap(function* () { yield 42; return Infinity; });
assert(!isMap(Symbol('foo')));
assert(!isMap(1n));
assert(!isMap(Object(1n)));
assert(!isMap(new Set()));
assert(!isMap(new WeakSet()));
assert(!isMap(new WeakMap()));
assert(isMap(new Map()));
class MyMap extends Map {}
assert(isMap(new MyMap()));
Tests
Simply clone the repo, npm install, and run npm test