Functions – Declaring
Name:
Date:
Class:
A
Quick Questions
Shade in the A or B circle for each question.
1. Does 'function' declare a reusable block of code?
2. Does a function need parentheses after its name?
3. Must 'function' be written in lowercase?
4. Does calling a function require parentheses after its name?
5. Are JavaScript function names case-sensitive?
B
Match the Pairs
Draw a line connecting each item on the left to its match on the right.
| Left column | Right column | |
|---|---|---|
| 1function greet() { ... } | A() | |
| 2greet(); | BRuns the code inside the greet function | |
| 3The keyword used to declare a function | Cfunction | |
| 4Follows a function's name in its declaration | DDeclares a reusable function named greet | |
| 5Function greet() { console.log("Hi"); } | EWrong - missing the parentheses after the function name | |
| 6function wave { console.log("Wave"); } | FWrong - 'function' must be lowercase |
C
Definitions
function
D
Fill in the Blanks
Complete each line of code by filling in the missing parts.
1.
________ greet() {
2.
function greet_) {
3.
________ sayBye() {
4.
function sayBye_) {
5.
greet_);
E
Spot the Error
Shade in the letter of the line that contains an error.
Question 1
A
Function greet() {
B
console.log("Hi");
C
}
Question 2
A
function sayHi() {
B
console.log("Hi");
C
}
D
sayhi();
Question 3
A
function wave {
B
console.log("Wave");
C
}
Question 4
A
function jump() {
B
jump;
C
console.log("Jump");
D
}
Question 5
A
function run() {
B
console.log("Run")
C
}
Answer Key
Functions – Declaring
Section A: Quick Questions
Q1
A — Yes
Q2
B — Yes
Q3
A — Yes
Q4
B — Yes
Q5
A — Yes
Section B: Match the Pairs
Q1
function greet() { ... } → Declares a reusable function named greet
Q2
greet(); → Runs the code inside the greet function
Q3
The keyword used to declare a function → function
Q4
Follows a function's name in its declaration → ()
Q5
Function greet() { console.log("Hi"); } → Wrong - 'function' must be lowercase
Q6
function wave { console.log("Wave"); } → Wrong - missing the parentheses after the function name
Section C: Definitions
Q1
function — Declares a reusable block of code with a name, which can be run later by calling it.Section D: Fill in the Blanks
Q1
function greet() {Q2
function greet() {Q3
function sayBye() {Q4
function sayBye() {Q5
greet();Section E: Spot the Error
Q1
A — 'function' must be lowercase - a capital F causes an error.
Q2
D — Function names are case-sensitive - it should be sayHi(), not sayhi().
Q3
A — A function declaration needs parentheses after its name.
Q4
B — Calling a function needs parentheses: jump().
Q5
B — This line is missing a semicolon, but that's not required in JS.