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Package detail

@womorg/animated

womorg17.8kMIT6.15.131

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accessor, channel, transpile, config, groupBy, css variable, typeof, simpledb, typescript, es5, qs, Object.values, properties, getOwnPropertyDescriptor, directory, tools, throat, deep-copy, setPrototypeOf, trimLeft, higher-order, from, dotenv, logger, sanitize, ES2018, moment, tape, auth, pyyaml, crypt, CSSStyleDeclaration, fast-deep-clone, stringifier, immutable, transpiler, drop, private data, Float32Array, Object.is, windows, dataview, es2015, styling, signal, dom, beanstalk, unicode, key, ajax, utility, less, irq, Observables, scheme-validation, rmdir, handlers, object, Object.entries, read, debug, emoji, waapi, ES2023, shell, url, workflow, assert, workspace:*, jest, type, shim, columns, core-js, emit, queueMicrotask, dir, three, chinese, watchFile, react-testing-library, rm, circular, compile less, Array.prototype.findLastIndex, mimetypes, WebSocket, internal, Iterator, look-up, framework, point-free, let, jsonpath, descriptor, api, macos, cache, input, flat, test, react, getPrototypeOf, superstruct, ECMAScript 2016, pretty, modules, spinners, ECMAScript 7, typesafe, Array.prototype.includes, http, call, bdd, formatting, hasOwnProperty, exit, censor, emr, ES7, assign, korean, classname, limited, column, ECMAScript 5, eslintplugin, trim, ECMAScript 6, byteLength, compare, rangeerror, encryption, shared, iterate, findLast, ES2015, waf, logging, utils, error, watch, mime-db, omit, Object.assign, stable, Array.prototype.flat, @@toStringTag, Object.keys, ArrayBuffer.prototype.slice, ECMAScript 3, prune, Array.prototype.flatten, linux, tostringtag, Uint8Array, postcss-plugin, command, eslint-plugin, bootstrap less, iam, flag, weakset, password, es2016, Array.prototype.contains, concatMap, chromium, fp, syntax, symbols, positive, limit, hardlinks, functions, ECMAScript 2020, WeakSet, ascii, vpc, ReactiveExtensions, es2018, 256, color, browser, art, regexp, delete, classnames, CSS, drag, byte, safe, glacier, Array.prototype.flatMap, gradients css, wordwrap, traverse

readme

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Returns true if a value has the characteristics of a valid JavaScript data descriptor.

Examples

true when the descriptor has valid properties with valid values. false when not an object or when the object has invalid properties.

var isDataDesc = require('@womorg/animated');
var assert = require('assert');

assert.equal(true, isDataDesc({ value: 'foo' }));
assert.equal(true, isDataDesc({ value: function () {} }));
assert.equal(true, isDataDesc({ value: true }));

assert.equal(false, isDataDesc('a'));
assert.equal(false, isDataDesc(null));
assert.equal(false, isDataDesc([]));

assert.equal(false, isDataDesc({ value: 'foo', bar: 'baz' }));
assert.equal(false, isDataDesc({ value: 'foo', bar: 'baz' }));
assert.equal(false, isDataDesc({ value: 'foo', get: function () {} }));
assert.equal(false, isDataDesc({ get: function () {}, value: 'foo' }) );

assert.equal(false, isDataDesc({ value: 'foo', enumerable: 'foo' }));
assert.equal(false, isDataDesc({ value: 'foo', configurable: 'foo' }));
assert.equal(false, isDataDesc({ value: 'foo', writable: 'foo' }));

Valid properties

The only valid data descriptor properties are the following:

  • configurable (required)
  • enumerable (required)
  • value (optional)
  • writable (optional)

To be a valid data descriptor, either value or writable must be defined.

Invalid properties

A descriptor may have additional invalid properties (an error will not be thrown).

var foo = {};

Object.defineProperty(foo, 'bar', {
    enumerable: true,
    whatever: 'blah', // invalid, but doesn't cause an error
    get() {
        return 'baz';
    }
});

assert.equal(foo.bar, 'baz');
  • is-accessor-descriptor: Returns true if a value has the characteristics of a valid JavaScript accessor descriptor.
  • is-descriptor: Returns true if a value has the characteristics of a valid JavaScript descriptor. Works for… more

Tests

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