KA JS Objects

Which of these is a valid line of JS code that stores an object in a variable?

• var me = {age=31, hair='brown'};
• var me = {age: 31, hair: 'brown'};
• var me = {age:31 hair:'brown'};
• var me = {var age=31, var hair='brown'};

Which of these objects have 3 properties?

• var me = {age: 31, hair: 'brown'};
• var me = {age: 31};
• var me = {age: 31, hair: 'brown', eyes: 'blue'};
• var me = {hair: ['brown', 'blonde', 'pink']};

Let's say you're storing an object in a variable named 'angel' with the property 'fur'. Which line of code would change that property's value?

• angel.fur = 'orange';
• angel[fur] = 'orange';
• angel_fur = 'orange';
• var angel.fur = 'orange';

Let's say you're storing an object in a variable named 'pumpkin'. Which line of code would add a new property 'eyes' to the object?

• pumpkin.push({eyes: 'green'});
• pumpkin[eyes] = 'green';
• pumpkin.eyes = 'green';
• var pumpkin.eyes = 'green'

What does JavaScript return to you if you try to access a object's property that doesn't exist?

• null
• undefined
• 'oopsies!'
• 0

Which of these is a valid line of JS that stores an array of objects in a variable?

• var books = [{title: 'Robot Dreams', author: 'Asimov'}];
• var books = [{title='Robot Dreams', author='Asimov'}];
• var books = {[title: 'Robot Dreams', author: 'Asimov']};
• var books = [title: 'Robot Dreams', author: 'Asimov'];