ACARA Digital Technologies Years 9–10 Word Scramble: Modular and Object-Oriented Programming (Python) and Modular and Object-Oriented Programming (JavaScript) (Modules 681–707)
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Word scramble
Unscramble the letters and write each key term on the line.
1
ORALDMU AROGPMR
A program split into parts: a class for its things, a list of objects, and small functions called from main(), planned with diagrams and checked with tests.
2
DNUNFEIED
The value a function gives back when it has no return statement. console.log only shows a value on screen, so a variable storing the result will hold ______.
3
TNUERR USQEAA(R) + RQUEBS(A);
A function can call another function inside its body. Here square() is a helper, so the bigger function stays short and each function does one job.
4
FI (ESGLIVIDAA(AEG))
A function that returns true or false can be called right inside an if condition. The if block runs only when the function returns true, like isEven(n) or isValidAge(age).
5
BLLKACAC
A function passed as an argument, without brackets, to another function that calls it later. Examples: nums.forEach(show) or nums.map(n => n * 2).
6
LHAGY.ATRRNE
A property (no brackets) giving how many items are in an array. The last index is length - 1, an empty array has length 0, and length grows as items are added.
7
RAL[TRR.HRANEG]
Reading an index past the last item (or a negative index) does not crash. It gives undefined. The last valid index is length - 1, so scores[10] in a 10-item array is undefined.
Answer Key
ACARA Digital Technologies Years 9–10 · Modules 681–707
1ORALDMU AROGPMR → modular program — A program split into parts: a class for its things, a list of objects, and small functions called from main(), planned with diagrams and checked with tests.
2DNUNFEIED → undefined — The value a function gives back when it has no return statement. console.log only shows a value on screen, so a variable storing the result will hold undefined.
3TNUERR USQEAA(R) + RQUEBS(A); → return square(a) + square(b); — A function can call another function inside its body. Here square() is a helper, so the bigger function stays short and each function does one job.
4FI (ESGLIVIDAA(AEG)) → if (isValidAge(age)) — A function that returns true or false can be called right inside an if condition. The if block runs only when the function returns true, like isEven(n) or isValidAge(age).
5BLLKACAC → callback — A function passed as an argument, without brackets, to another function that calls it later. Examples: nums.forEach(show) or nums.map(n => n * 2).
6LHAGY.ATRRNE → array.length — A property (no brackets) giving how many items are in an array. The last index is length - 1, an empty array has length 0, and length grows as items are added.
7RAL[TRR.HRANEG] → arr[arr.length] — Reading an index past the last item (or a negative index) does not crash. It gives undefined. The last valid index is length - 1, so scores[10] in a 10-item array is undefined.