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Marek Piasecki
06fbe82dce
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2 years ago | |
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.github | 2 years ago | |
test | 2 years ago | |
.editorconfig | 2 years ago | |
.eslintignore | 2 years ago | |
.eslintrc | 2 years ago | |
.gitattributes | 2 years ago | |
.nycrc | 2 years ago | |
CHANGELOG.md | 2 years ago | |
LICENSE | 2 years ago | |
README.md | 2 years ago | |
index.js | 2 years ago | |
package.json | 2 years 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