Get Programming with JavaScript - Listing 10.04

Listing 10.04 - Using Object.keys

var ages = { "Kandra Smith" : 56, "Dax Aniaku" : 210, "Blinky" : 36 }; var keys = Object.keys(ages); console.log(keys);

Further Adventures

Listing 10.04 - Using Object.keys - Task 1

var ages = { "Kandra Smith" : 56, "Dax Aniaku" : 210, "Blinky" : 36, "Filboid Studge" : 120, "??? Mr Nigma ???" : 37 }; var keys = Object.keys(ages); console.log(keys);

Listing 10.04 - Using Object.keys - Task 2

var ages = { "Kandra Smith" : 56, "Dax Aniaku" : 210, "Blinky" : 36, "Filboid Studge" : 120, "??? Mr Nigma ???" : 37 }; // another property ages["Yet another property!!!"] = 16; var keys = Object.keys(ages); console.log(keys);