Can someone please explain to me what's the differences between these and what and when they are used for?

Question

1. == and ===
2. != and !==

Answer 1

Identical(===) and Not Identical(!==) compare both type and value, but == and != only compares the value. So if you compare an integer 10 with a string "10" === returns false but == returns true.

Answer 2

x === y is "x equals y"

== is a bit more complicated. it's a logical process known as XOR. it finds out if two things are the same, usually used when we want to know if x is true and y is also true, or when x is false and y is also false. that's when we use [ if (x == y)]

! is the "not" wherever you put it

Answer 3

x+28.8 y++-23

Answer 4

what great average denomation +++45.23