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Books/JavaScript/The principles of object-oriented javascript/notes.md
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| ## The Principles of Object-Oriented JavaScript | ||
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...ct creation patterns tutorial - factory , constructor pattern, prototype pattern/index.js
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| /** | ||
| * Factory Pattern | ||
| */ | ||
| const peopleFactory = function(name, age, location) { | ||
| const temp = {}; | ||
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| temp.name = name; | ||
| temp.age = age; | ||
| temp.location = location; | ||
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| temp.printPeople = function() { | ||
| return console.log(`Hello ${this.name}, ${this.age} who came from ${this.location}`); | ||
| } | ||
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| return temp; | ||
| } | ||
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| const me = peopleFactory('Bob', 20, 'Canada'); | ||
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| me.printPeople() | ||
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| /** | ||
| * Constructor Patter | ||
| */ | ||
| const personConstructor = function(name, age, location) { | ||
| this.name = name; | ||
| this.age = age; | ||
| this.location = location; | ||
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| this.printPerson = function() { | ||
| return console.log`Hello ${this.name}, ${this.age} who came from ${this.location}`; | ||
| } | ||
| } | ||
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| const you = new personConstructor('Luc', 25, 'USA'); | ||
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| /** | ||
| * Prototype Pattern | ||
| */ | ||
| const peopleProto = function(){}; | ||
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| peopleProto.prototype.name = 'no name'; | ||
| peopleProto.prototype.age = 0; | ||
| peopleProto.prototype.city = 'no city'; | ||
| peopleProto.prototype.print = function() { | ||
| return console.log(`Hello ${this.name}, ${this.age} who came from ${this.city}`); | ||
| } | ||
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| const people1 = new peopleProto(); | ||
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| people1.name = 'Yan'; | ||
| people1.age = 30; | ||
| people1.city = 'Quebec'; | ||
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| console.log(people1); | ||
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| console.log('name' in people1); // true | ||
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| /** | ||
| * Dynamic Proto | ||
| */ | ||
| const peopleDynamicProto = function(name, age, city) { | ||
| this.name = name; | ||
| this.age = age; | ||
| this.city = city; | ||
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| if (typeof this.printPeople !== 'function') { | ||
| peopleDynamicProto.prototype.print = function() { | ||
| return console.log(`Hello ${this.name}, ${this.age} who came from ${this.city}`); | ||
| }; | ||
| } | ||
| } |