Javascript Objects
This series of challenges tests your knowledge about Javascript objects.
Next Challenge
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Accessing object properties one
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Accessing object properties two
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Accessing object properties three
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Check if property exists in object
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Creating Javascript objects one
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Creating Javascript objects two
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Creating Javascript objects three
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Extract keys from Javascript object
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Sum object values
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Remove a property from an object
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Merge two objects with matching keys
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Multiply all object values by x
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Swap object keys and values
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Replace empty strings in object with null values
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Extracting information from objects
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Add property to each object in array
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Convert array to object with counter