unbox-primitive (1.1.0)
Published 2026-02-24 14:07:52 +00:00 by atheaadmin
Installation
registry=npm install unbox-primitive@1.1.0"unbox-primitive": "1.1.0"About this package
unbox-primitive 
Unbox a boxed JS primitive value. This module works cross-realm/iframe, does not depend on instanceof or mutable properties, and works despite ES6 Symbol.toStringTag.
Example
var unboxPrimitive = require('unbox-primitive');
var assert = require('assert');
assert.equal(unboxPrimitive(new Boolean(false)), false);
assert.equal(unboxPrimitive(new String('f')), 'f');
assert.equal(unboxPrimitive(new Number(42)), 42);
const s = Symbol();
assert.equal(unboxPrimitive(Object(s)), s);
assert.equal(unboxPrimitive(new BigInt(42)), 42n);
// any primitive, or non-boxed-primitive object, will throw
Tests
Simply clone the repo, npm install, and run npm test
Dependencies
Dependencies
| ID | Version |
|---|---|
| call-bound | ^1.0.3 |
| has-bigints | ^1.0.2 |
| has-symbols | ^1.1.0 |
| which-boxed-primitive | ^1.1.1 |
Development Dependencies
| ID | Version |
|---|---|
| @arethetypeswrong/cli | ^0.17.1 |
| @ljharb/eslint-config | ^21.1.1 |
| @ljharb/tsconfig | ^0.2.2 |
| @types/for-each | ^0.3.3 |
| @types/object-inspect | ^1.13.0 |
| @types/object-is | ^1.1.0 |
| @types/tape | ^5.7.0 |
| auto-changelog | ^2.5.0 |
| encoding | ^0.1.13 |
| es-value-fixtures | ^1.5.0 |
| eslint | =8.8.0 |
| for-each | ^0.3.3 |
| in-publish | ^2.0.1 |
| npmignore | ^0.3.1 |
| nyc | ^10.3.2 |
| object-inspect | ^1.13.3 |
| object-is | ^1.1.6 |
| safe-publish-latest | ^2.0.0 |
| tape | ^5.9.0 |
| typescript | next |
Keywords
unbox
boxed
primitive
object
javascript
ecmascript