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object.getownpropertydescriptors

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object.getownpropertydescriptors

ES2017 spec-compliant shim for `Object.getOwnPropertyDescriptors` that works in ES5.

    2.1.4latest

Version published
Maintainers
1
Weekly downloads
15,616,309
increased by0.94%

Weekly downloads

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An ES2017 spec-compliant shim for Object.getOwnPropertyDescriptors that works in ES5. Invoke its "shim" method to shim Object.getOwnPropertyDescriptors if it is unavailable, and if Object.getOwnPropertyDescriptor is available.

This package implements the es-shim API interface. It works in an ES3-supported environment and complies with the spec.

Example

var getDescriptors = require('object.getownpropertydescriptors'); var assert = require('assert'); var obj = { normal: Infinity }; var enumDescriptor = { enumerable: false, writable: false, configurable: true, value: true }; var writableDescriptor = { enumerable: true, writable: true, configurable: true, value: 42 }; var symbol = Symbol(); var symDescriptor = { enumerable: true, writable: true, configurable: false, value: [symbol] }; Object.defineProperty(obj, 'enumerable', enumDescriptor); Object.defineProperty(obj, 'writable', writableDescriptor); Object.defineProperty(obj, 'symbol', symDescriptor); var descriptors = getDescriptors(obj); assert.deepEqual(descriptors, { normal: { enumerable: true, writable: true, configurable: true, value: Infinity }, enumerable: enumDescriptor, writable: writableDescriptor, symbol: symDescriptor }); var getDescriptors = require('object.getownpropertydescriptors'); var assert = require('assert'); /* when Object.getOwnPropertyDescriptors is not present */ delete Object.getOwnPropertyDescriptors; var shimmedDescriptors = getDescriptors.shim(); assert.equal(shimmedDescriptors, getDescriptors); assert.deepEqual(shimmedDescriptors(obj), getDescriptors(obj)); var getDescriptors = require('object.getownpropertydescriptors'); var assert = require('assert'); /* when Object.getOwnPropertyDescriptors is present */ var shimmedDescriptors = getDescriptors.shim(); assert.notEqual(shimmedDescriptors, getDescriptors); assert.deepEqual(shimmedDescriptors(obj), getDescriptors(obj));

Tests

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

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FAQs

What is object.getownpropertydescriptors?

ES2017 spec-compliant shim for `Object.getOwnPropertyDescriptors` that works in ES5.

Is object.getownpropertydescriptors popular?

The npm package object.getownpropertydescriptors receives a total of 12,731,268 weekly downloads. As such, object.getownpropertydescriptors popularity was classified as popular.

Is object.getownpropertydescriptors well maintained?

We found that object.getownpropertydescriptors demonstrated a healthy version release cadence and project activity. It has 1 open source maintainer collaborating on the project.

Last updated on 20 May 2022
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