Writing Functions
Parts of a Function
Declaration: It starts with the
function
keyword.Name: The identifier for the function like
ninjaController
,lootBox
, etc.Parameters: Variables listed in parentheses that accept values when the function is called.
Body: A block of code inside curly braces
{}
which performs the function's actions.Return Value: Optional statement to output a value. Without it, functions return
undefined
.
Example
ninja.js
ninjaController
: Controls the ninja by callinglootBox
twice and moving right four times.lootBox
: Defines a set of actions (moving, picking sushi) for the ninja.Parameter: Both functions take a ninja object that has methods like
goRight()
,goUp()
, etc.
Task
Swipe to start coding
Solution
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SectionΒ 3. ChapterΒ 2