Understanding the use of data types

• Storing a phone number as an integer prevents leading zeros from being displayed correctly.


  True
• Match the data type with its typical value:

  Integer ↔️ -10

  Float ↔️ -0.5

  String ↔️ "ABC123"

  Boolean ↔️ False
• Storing a phone number as a String preserves leading zeros, unlike an Integer.
• Data types are classifications that define the type of data a variable can hold
• Using the appropriate data type ensures the program can correctly store, manipulate, and interpret the data
• Order the typical use cases of each data type:

  1️⃣ Integer - Counting objects

  2️⃣ Float - Representing currency

  3️⃣ String - Capturing user names

  4️⃣ Boolean - Indicating states
• Strings are used to represent logical states in programming.

  False
• Data types classify the type of data a variable can hold.


  True
• Using the appropriate data type is important for correct storage and manipulation of data.

  True
• Choosing the appropriate data type is crucial for accurately storing and manipulating data in a program.


  True
• Declaration establishes a variable's existence, while assignment provides it with a value.


  True
• Using the correct data type helps optimize storage and processing efficiency.


  True
• Match the data type with its description:

  Integer ↔️ Whole numbers

  Float ↔️ Decimal numbers

  String ↔️ Text data

  Boolean ↔️ True/False values
• A monetary amount is better stored as a Float to represent decimal values.


  True
• Floats are used to store decimal numbers
• Storing a phone number as a String preserves leading zeros
• What type of data is used for whole numbers without decimals?

  Integer
• Storing a phone number as an integer rather than a String would prevent leading zeros from being displayed correctly.
• What is the purpose of the Float data type?

  Store decimal numbers
• Variable declaration involves giving a name and data type to a variable before it is used.
• Variables must be declared before they can be assigned a value.
• What type of data is used for decimal numbers?

  Float
• What is the purpose of the Integer data type?

  Store whole numbers
• Match the data type with its purpose:

  Integer ↔️ Storing whole numbers

  Float ↔️ Storing decimal numbers

  String ↔️ Storing text data

  Boolean ↔️ Storing True/False values
• What is the purpose of variable assignment?

  Give the variable a value
• Match the data type with its example:

  Integer ↔️ `let num = 42;`

  Float ↔️ `let pi = 3.14;`

  String ↔️ `let name = "John Doe";`

  Boolean ↔️ `let isCorrect = true;`