JavaScript 101 - Class 2
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This document covers JavaScript array basics and loops. It discusses array data types, accessing array values using indices, determining array length, using for and while loops to iterate through arrays, and deleting array items. Control flow concepts like if/else if/else statements and logical operators are also mentioned. Exercises are included to practice creating and iterating through arrays using loops.
JavaScript 101 - Class 2
- 1. 1. Refresher 2. Array Basics 3. Loops 4. Control Flow
- 2. Data types
- 7. Variables
- 9. Functions
- 11. 1. Refresher 2. Array Basics 3. Loops 4. Control Flow
- 12. What is an Array and why do I care?
- 15. An array can be stored as a variable
- 17. How do I access just one value?
- 18. Array indices
- 29. How do I tell how many items are in there?
- 32. Exercise Create an Array with any values and assign it to a variable.! RTFG (read the freaking google) and find out how to delete an item from a JavaScript array.
- 33. 1. Refresher 2. Array Basics 3. Loops 4. Control Flow
- 34. “for” loops
- 42. How can we “iterate” through this Array and print out all of the values?
- 45. Exercise Use the knowledge you have learned today to:! create an Array of items and assign it to a variable! “iterate” through each item and delete it from the array! check the value of your variable you created for the Array. What does it return?
- 46. “while” loops
- 50. Now, as a while loop…
- 52. “for” and “while” loops are two different ways of accomplishing the exact same thing.
- 53. Exercise Convert your “for” loop from the previous exercise to a “while” loop and make sure it has the exact same output as before.! If you forgot…! create an Array of items and assign it to a variable! “iterate” through each item and delete it from the array! check the value of your variable you created for the Array. What does it return?
- 54. 1. Refresher 2. Array Basics 3. Loops 4. Control Flow
- 55. No slides allowed here. Learn to RTFG.
- 56. if! else if! else! “switch” statement! logical operators