Data Structures Lesson Notes

data-structures.md

Data Structures

Objectives

• Explain the difference between objects and arrays
• Create arrays with data
• Identify methods on arrays:
  • Create
  • Read
  • Update
  • Delete
• Create objects with data
• Identify methods on objects:
  • Create
  • Read
  • Update
  • Delete

Guiding Questions

Arrays

• Given the following array, how do you add 'music' to the end:

  var partySupplies = [ 'balloons', 'snacks']

  How would you change 'snacks' to 'beer' instead?

  Your answer...

• How do you create, read, update, & delete indevidual items in an array? Fill in the following table with the correct values:

  Action	Method
  Create
  Read
  Update
  Delete

Objects

• Create a car object with the following properties:

  • wheels: 4
  • engine: 'diesel'
  • ac: false

  How would you update the ac property to be true? How would you add a new property called moonRoof to the car object?

  Your answer...

• How do you create, read, update, & delete indevidual items in an object? Fill in the following table with the correct values:

  Action	Method
  Create
  Read
  Update
  Delete

• Represent each of the following statements as either an object or array:

  • My cat is cool. She has black fur and a mild temper.
  • My morning routine consists of showering, brushing my teeth, then I put on my pants.
  • In my wallet I have 3 dollar bills, 4 quarters and a penny.