Third Day Quiz!

What's wrong with the syntax? (ignore the indentation)

def Function1();

print("hello world")

• it doesn't take in any parameters

• the semicolon should be replaced by colon

• the function name starts with upper-case "F"

• it doesn't return anything

A function is

• Specific codes with a specific purpose(s) all together so they are maintainable and organized

• A waste of time to use and it doesn't help your codes at all

• Locate your codes in a single place so that it's easier to maintain

• It's like a factory that may take into input (parameters) and process the input and give you a product (return)

How do I call the helloWorld function?

• helloWorld

• shout HELLO WORLD as loud as you can

• helloWorld()

• print("Hello World")

What's wrong with this code?

• It doesn't return a*b

• It's missing two required parameters

• the syntax of the function is wrong

What will be the output and why?

• False because the function is not equal to "Hello!"

• False because "Hello!" is not equal to a

• True because the voice_echo function will return "Hello!"

• True because voice_echo function has been assigned to True by the return keyword

Which of the following statement is false?

• Sometimes function doesn't take parameters, sometimes it doesn't return anything, it all depends on your use case

• return is only used when there is at least one parameter

• using a return without parameter(s) is possible

• We should always use functions to group our codes with specific purpose(s)

Which of the hierarchical variable scope order is correct?

• Local -> Enclosing -> Built-in -> Global

• Built-in -> Global -> Enclosing -> Local

• Enclosing -> Local -> Global -> Built-in

• Local -> Enclosing -> Global -> Built-in

What will be printed out?

• 20

• 30

• 10

• UnboundLocalError will be raised

Why do we use import?

• To simplify our codes

• So we can write thousands of line ourselves without using others' codes

• So we can reuse a certain library that one has written in different programs

• To save our time

which of the following is wrong?

• import math as m

• from math import * as a

• from math import radians as rd

• from math import sin