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Home Javascript fundamentals Javascript objects

Check if property exists in object

Check if property exists in object

// Write a function that takes an object (a) and a string (b) as argument
// Return true if a has a property with key b
// Return false otherwise
			function
				myFunction
				(
				a, b
				)
				{
			
				
				
return 

			}

Test Cases:

myFunction({a:1,b:2,c:3},'b')

Expected

true

myFunction({x:'a',y:'b',z:'c'},'a')

Expected

false

myFunction({x:'a',y:'b',z:'c'},'z')

Expected

true