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Curriculum Help
1

Why is it in brackets???

const getMousePosition = (x, y) => ({ x, y });

I mean this

({ x, y })

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Challenge: Write Concise Object Literal Declarations Using Object Property Shorthand

Link to the challenge:

2

this is the object we want to return from the function

if we write (x,y) => {x, y} the {} are interpreted as being those around the function body, so to make the function return an object using implicit return we need to surround it with (), making it (x,y) => ({x, y})