Can you explain this equation?

== and != are called comparison operators. They are used to compare two values and see whether they are the same (==) or check if they are different (!=). E.g.

if (gender=="Male") alert("You are a man.");

myFavouriteNumber=5;

 To Sum it up…

An = sign is used to assign a value to a variable: e.g.

var a=3;
a=5+2;

An == sign is used to compare if two values are equal e.g.

if (a==3) {
    alert("a is equal to 3");
} else {
    alert("a is not equal to 3");
}

A != sign is used to compare if two values are different e.g.

if (a!=3) {
    alert("a is not equal to 3");
 } else {
     alert("a is equal to 3");
 }