Published Dec 07 2018
Use the Object.keys()
method, passing the object you want to inspect, to get an array of all the (own) enumerable properties of the object.
Then calculate the length of that array by checking the length
property:
const car = {
color: 'Blue',
brand: 'Ford',
model: 'Fiesta'
}
Object.keys(car).length
I said enumerable properties. This means their internal enumerable flag is set to true, which is the default. Check MDN for more info on this subject.
I wrote an entire book on this topic 👇
I also got a super cool course 👇
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