YDKNJS this object prototypes

Question 1

how to reference a function inside itself?

Answer 1

by using it’s name

Question 2

can you reference an anonymous function inside itself?

Answer 2

no because it has no name

Question 3

is ‘this’ compile time binding or runtime binding?

Answer 3

runtime binding

Question 4

how is ‘this’ determined?

Answer 4

by how the function was called not where was it declared

Question 5

what are the rules of binding?

Answer 5

1 - default binding -> global object
2 - implicit binding -> obj.fn
3 - explicit binding -> fn.call(obj) or .apply(obj)
4 - hard binding -> wrapping around the fn.call() another function so that it never loses it’s ‘this’binding ex:fn.bind()
5 - new binding -> new foo();

Question 6

how can u always maintain an object binding to a function?

Answer 6

using fn.bind(obj)

Question 7

how does the ‘new’ differ in js?

Answer 7

t’s not creating a new instance but just invoking a function that happens to be called a constructor

Question 8

what is the order of precedence in ‘this’ binding?

Answer 8

1 - new binding
2 - hard binding or explicit binding
3 - implicit binding
4 - default binding

Question 9

what is the ‘this’ binding for .call(null)

Answer 9

default binding

Question 10

what is the ‘this’ binding of arrow functions?

Answer 10

it binds to the lexical scope of the this of the outer function it’s enclosed in

Question 11

what happens to default binding using strict mode?

Answer 11

this becomes undefined