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January 9, 2018 17:46
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JavaScript Magic Functions
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| 'use strict' | |
| const magic = require('./magic') | |
| class Request { | |
| constructor(req) { | |
| this.req = req | |
| this.user = 'morrelinko' | |
| } | |
| __get (prop) { | |
| return this.req[prop] | |
| } | |
| __set (prop, value) { | |
| this.req[prop] = value | |
| } | |
| } |
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| 'use strict' | |
| const assert = require('assert') | |
| module.exports = function (obj) { | |
| return new Proxy(obj, { | |
| get (target, prop, receiver) { | |
| if (prop in target) { | |
| return Reflect.get(target, prop, receiver) | |
| } | |
| if (target.__get) { | |
| return target.__get(prop) | |
| } | |
| }, | |
| set (target, prop, value, receiver) { | |
| if (prop in target) { | |
| return Reflect.set(target, prop, value, receiver) | |
| } | |
| if (target.hasOwnProperty('__set')) { | |
| target.__set(prop) | |
| } | |
| return true | |
| } | |
| }) | |
| } |
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