Objects

JavaScript Objects

Objects store key-value pairs. Functions inside objects are methods.

Access

Dot: user.name
Bracket: user["name"]

Useful

Object.keys(obj)
Object.values(obj)
Object.entries(obj)

Example

const user={name:'Alice',age:25,greet(){return `Hi, I\'m ${this.name}!`;}};
console.log(user.name);    // 'Alice'
console.log(user.greet()); // 'Hi, I'm Alice!'
Object.keys(user);         // ['name','age','greet']

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Related Resources

JavaScript Reference

Complete tag & property list

JavaScript How-To Guides

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JavaScript Exercises

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