ACARA Digital Technologies Years 9–10 Crossword: Modular and Object-Oriented Programming (JavaScript) (Modules 728–742)
Name:
Date:
Class:
✎
Crossword
Read each clue and write the matching term in the grid. Numbers in brackets show the letters in each word.
1
2
3
4
5
6
7
8
9
Across
- 1. Object-oriented programming: building a program from objects that bundle related data with the code that uses it, modelling real things and reusing a blueprint. (3)
- 3. Creates an object from a class and passes the ______ to the constructor. Store it in a variable, e.g. const rex = new Dog('Rex', 3). Leaving out new causes an error. Word 2 of: new _________(_________) (9)
- 7. Word 2 of the term in 6 Down: _____ ___ (3)
- 8. A method is a function stored as an object property. Write it inside the object, then call it with a dot and brackets: person.______(). (5)
- 9. Inside a class, this means the object being worked on, so ______ is that object's own ______ property. Leaving out this causes a ReferenceError. Word 2 of: this.____ (4)
Down
- 2. Reads a ______ of an object, like rex.age. To change it, assign a new value: rex.age = 4. Each object keeps its own values. Word 2 of: object.________ (8)
- 3. Read the ______ and predict its output, change one small part at a time, then re-run your tests after each change to check that nothing else broke. Word 2 of: modify ____ (4)
- 4. Word 3 of the term in 3 Across: new _________(_________) (9)
- 5. Assigning to object.property with = changes an existing property or adds a new one if it is not there yet. Reading a property that does not exist gives undefined. Word 2 of: student.___ = 16 (3)
- 6. A blueprint for dogs. An object like Rex is made from it. Properties are its data (nouns like name) and methods are its actions (verbs like bark). Word 1 of: _____ ___ (5)
Answer Key
ACARA Digital Technologies Years 9–10 · Modules 728–742
1O
O
2P
R
O
P
3C
L
4A
S
S
N
5A
M
E
6C
O
R
G
R
L
7D
O
G
8G
R
E
E
T
9N
A
M
E
U
Y
S
M
S
E
N
T
S
Across
1OOP — Object-oriented programming: building a program from objects that bundle related data with the code that uses it, modelling real things and reusing a blueprint.
3CLASSNAME — Creates an object from a class and passes the ______ to the constructor. Store it in a variable, e.g. const rex = new Dog('Rex', 3). Leaving out new causes an error. Word 2 of: new _________(_________)
7DOG — Word 2 of the term in 6 Down: _____ ___
8GREET — A method is a function stored as an object property. Write it inside the object, then call it with a dot and brackets: person.______().
9NAME — Inside a class, this means the object being worked on, so ______ is that object's own ______ property. Leaving out this causes a ReferenceError. Word 2 of: this.____
Down
2PROPERTY — Reads a ______ of an object, like rex.age. To change it, assign a new value: rex.age = 4. Each object keeps its own values. Word 2 of: object.________
3CODE — Read the ______ and predict its output, change one small part at a time, then re-run your tests after each change to check that nothing else broke. Word 2 of: modify ____
4ARGUMENTS — Word 3 of the term in 3 Across: new _________(_________)
5AGE — Assigning to object.property with = changes an existing property or adds a new one if it is not there yet. Reading a property that does not exist gives undefined. Word 2 of: student.___ = 16
6CLASS — A blueprint for dogs. An object like Rex is made from it. Properties are its data (nouns like name) and methods are its actions (verbs like bark). Word 1 of: _____ ___