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Learn Writing Functions | Functions
JavaScript Ninja

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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

js

ninja.js

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  • ninjaController : Controls the ninja by calling lootBox 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

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Solution

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SectionΒ 3. ChapterΒ 2
js

ninja.js

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book
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

js

ninja.js

copy
  • ninjaController : Controls the ninja by calling lootBox 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

Switch to desktopSwitch to desktop for real-world practiceContinue from where you are using one of the options below
Everything was clear?

How can we improve it?

Thanks for your feedback!

SectionΒ 3. ChapterΒ 2
Switch to desktopSwitch to desktop for real-world practiceContinue from where you are using one of the options below
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