Created
July 30, 2018 23:12
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Social media example using this
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| // Constructor Function | |
| var Friend = function(name, password, interests, job){ | |
| this.fullName = name; | |
| this.password = password; | |
| this.interests = interests; | |
| this.job = job; | |
| }; | |
| function sayHello(){ | |
| // uncomment the console.log to see the object that 'this' points to | |
| // console.log(this); | |
| return `Hi, my name is ${this.fullName} and I'm a ${this.job}. Let's be friends!`; | |
| } | |
| // Create one or multiple instances of the Friend prototype with the keyword 'new' | |
| var john = new Friend('John Smith', 'badpassword', ['hiking', 'biking', 'skiing'], 'teacher'); | |
| console.log(john); | |
| // Assign the function to the greeting key on the john object | |
| john.greeting = sayHello; | |
| // Call the the new method | |
| console.log( john.greeting() ); | |
| // Remember, you can't call sayHello() as a function; it will return "Hi, my name is undefined and I'm a undefined. Let's be friends!" | |
| // Because the function's context is global and the window object does NOT have the keys that belong to the Friend prototype | |
| console.log( sayHello() ) ; |
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