# variables_practice.py

# Integer variable

age = 25

# Float variable

height = 1.75

# String variable

name = "Alice"

# Boolean variable

is_student = True

# Print variables

print("Name:", name)

print("Age:", age)

print("Height:", height)

print("Is student:", is_student)

# Update variables

age = age + 1

height = height + 0.05

name = name + " Smith"

is_student = False

print("\nUpdated values:")

print("Name:", name)

print("Age:", age)

print("Height:", height)

print("Is student:", is_student)

# Create a list variable

hobbies = ["reading", "cycling", "hiking"]

# Print list variable

print("\nHobbies:", hobbies)

# Add a new hobby

hobbies.append("painting")

# Print updated list variable

print("Updated Hobbies:", hobbies)

# Create a dictionary variable

profile = {

"name": name,

"age": age,

"height": height,

"is_student": is_student,

"hobbies": hobbies

}

# Print dictionary variable

print("\nProfile:", profile)

# Update dictionary variable

profile["age"] = profile["age"] + 1

# write a summary of the declaration and statement of variables

## Summary of Variable Declaration and Statement

# In Python, variables are declared by assigning a value to a name.

# The type of the variable is determined by the value assigned.

# Variables can be of different types such as integers, floats, strings, and booleans.

# Variables can also be updated by reassigning a new value to them.

let versionNumber = "2.0.0"; // declaration

versionNumber = "2.0.1"; // statement

# The let keyword allows us to create new variables like the const keyword.

#Math.round(10.3) is a call expression; read this as:

#apply the set of instructions for Math.round to the number 10.3.”

#If we type Math.round(10.3) then we get the result 10. So we say that Math.round(10.3) returns 10."

# Example of using Functions in JavaScript;

Math.round(4.7); // 5

// Example of using declarations in JavaScript;

#> versionNumber = "2.0.1";

'2.0.1'

> Math.round

[Function: round]

> Math.round(0.3)

0

> const roundValue = Math.round(10.3);

undefined

>

> roundValue

10

> const roundValueInString = `10.3 round to ${Math.round

(10.3)}`;

undefined

> roundValueInString

'10.3 round to 10'

> roundValueInString

'10.3 round to 10'