At times, for example, when receiving an object as afunction parameter, we wish to know if we have received an empty object or not.

This can especially be the case if some JSON data in arequest body is not parsed correctly; our server then ends up with an empty object.

functioncheck4ValidObjectWithKeys(someObj){if(Object.entries(someObj).length){return"👍🏾"}return"👎🏾"}

Object.entries...

...along with things likeObject.keys andObject.values (all would work for the example) creates an array of either...

1. The entries - 🔑/value pairs (it's an array of arrays!)
2. Just the 🔑s - again, an array
3. Just the values - what is it?...an array!

.length...

...gives us the length (number of items) in an array as anumber.

Coercion withif

if (Object.entries(someObj).length) { translates to:

1. Get the entries from the object as an array
2. If thelength of that array is considered as 'truthy' (non-zero)...