You are 0% ninja in JavaScript
1. What's the output?
let c = { greeting: "Hey!" }; let d; d = c; c.greeting = "Hello"; console.log(d.greeting);
2. What happens when we do this?
function bark() { console.log("Woof!"); } bark.animal = "dog";
3. All object have prototypes.
4. The JavaScript global execution context creates two things for you: the global object, and the "this" keyword.