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Javascript Arrays
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- Accessing object properties one
- Accessing object properties two
- Accessing object properties three
- Check if property exists in object
- Creating Javascript objects one
- Creating Javascript objects two
- Creating Javascript objects three
- Extract keys from Javascript object
- Sum object values
- Remove a property from an object
- Merge two objects with matching keys
- Multiply all object values by x
- Swap object keys and values
- Replace empty strings in object with null values
- Extracting information from objects
- Add property to each object in array
- Convert array to object with counter

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Convert array to object with counter

// Write a function that takes an array of numbers as argument
// Convert the array to an object
// It should have a key for each unique value of the array
// The corresponding object value should be the number of times the key occurs within the array
			function
				myFunction
				(
				a
				)
				{
			
				
				
return 

			}

Test Cases:

myFunction([1,2,2,3])

Expected

{1:1,2:2,3:1}

myFunction([9,9,9,99])

Expected

{9:3,99:1}

myFunction([4,3,2,1])

Expected

{1:1,2:1,3:1,4:1}