foop
Version:
interfaces that describe their intentions.
99 lines (95 loc) • 3.02 kB
JavaScript
/**
* @memberOf util
* @since 4.0.0
*
* {@link https://github.com/mobxjs/mobx/blob/master/src/utils/utils.ts#L86 mobx-object-assign}
* {@link https://developer.mozilla.org/en/docs/Web/JavaScript/Reference/Global_Objects/Object/assign mozilla-object-assign}
* {@link https://esdiscuss.org/topic/object-assign-with-several-source-objects esdiscuss-object-assign}
* {@link https://github.com/facebook/react/blob/4b2eac3de7e1dbf5c2dd742fd9989974a83972cb/scripts/babel/transform-object-assign-require.js react-object-assign}
* {@link https://github.com/lodash/lodash/blob/master/.internal/assignValue.js lodash-assign}
* {@link https://github.com/ramda/ramda/blob/master/src/internal/_objectAssign.js ramda-assign}
* @see {@link react-object-assign}
* @see {@link ramda-assign}
* @see {@link lodash-assign}
* @see {@link mobx-object-assign}
* @see {@link esdiscuss-object-assign}
* @see {@link mozilla-object-assign}
*
* @type {Function}
*/
module.exports = Object.assign
// const ENV_COMPAT = require('../env/compat')
// @TODO if (ENV_COMPAT) polyfill
// --- check
// function shouldUseNative() {
// try {
// if (!Object.assign) {
// return false
// }
//
// // Detect buggy property enumeration order in older V8 versions.
//
// // https://bugs.chromium.org/p/v8/issues/detail?id=4118
// var test1 = new String('abc') // eslint-disable-line no-new-wrappers
// test1[5] = 'de'
// if (Object.getOwnPropertyNames(test1)[0] === '5') {
// return false
// }
//
// // https://bugs.chromium.org/p/v8/issues/detail?id=3056
// var test2 = {}
// for (var i = 0; i < 10; i++) {
// test2['_' + String.fromCharCode(i)] = i
// }
// var order2 = Object.getOwnPropertyNames(test2).map(function(n) {
// return test2[n]
// })
// if (order2.join('') !== '0123456789') {
// return false
// }
//
// // https://bugs.chromium.org/p/v8/issues/detail?id=3056
// var test3 = {}
// 'abcdefghijklmnopqrst'.split('').forEach(function(letter) {
// test3[letter] = letter
// })
// if (
// Object.keys(Object.assign({}, test3)).join('') !== 'abcdefghijklmnopqrst'
// ) {
// return false
// }
//
// return true
// }
// catch (err) {
// // We don't expect any of the above to throw, but better to be safe.
// return false
// }
// }
// --- handle
// function ObjectAssign(target, source) {
// var from
// var to = toObject(target)
// var symbols
//
// for (var s = 1; s < arguments.length; s++) {
// from = Object(arguments[s])
//
// for (var key in from) {
// if (hasOwnProperty.call(from, key)) {
// to[key] = from[key]
// }
// }
//
// if (getOwnPropertySymbols) {
// symbols = getOwnPropertySymbols(from)
// for (var i = 0; i < symbols.length; i++) {
// if (propIsEnumerable.call(from, symbols[i])) {
// to[symbols[i]] = from[symbols[i]]
// }
// }
// }
// }
//
// return to
// }