Reading Notes Class 06
- How would you describe an object to a non-technical friend you grew up with?
- What are some advantages to creating object literals? The advantages of using object literals to create objects include convenience, flexibility in declaration, and less code during declaration. You can drop an object literal anywhere in your program with no previous setup and it’ll work
- How do objects differ from arrays? Objects represent “things” with characteristics (aka properties), while arrays create and store lists of data in a single variable.
- Evaluate the code below. What does the term this refer to and what is the advantage to using this?
const dog = {
name: ‘Spot’,
age: 2,
color: ‘white with black spots’,
humanAge: function (){
console.log(${this.name} is ${this.age*7} in human years);
}
}
This code is showing the name, age and color ofa dog in an Ul. The function is meant to show that the Spot is 14 years old in human years. It is taking the dog’s age which is 2 and multiplying it by 7 ( 1 dog year is = to 7 human years).
- What is the DOM? he Document Object Model (DOM) is a programming interface for web documents. It represents the page so that programs can change the document structure, style, and content. The DOM represents the document as nodes and objects; that way, programming languages can interact with the page.