As you're programming, when you want to assign value to a variable to use or change throughout the code, you use the = operator. The = operator is called the assignment operator, and there are many ways you can assign values to variables.
let x = 10; let name = "Jhonny"; let nameList = [ "Lisa", "Mona", "Tim"]
If = means assigning values, what does == mean?
Now think if you want to compare x to name, how would you compare them to evaluate if the variables are of the same value. That is where the == operator comes in handy, this operator called the equality operator. The return value when using it is a Boolean(true or false), it is not strict so if you compare
1 == "1"; // true x == "10"; // true name == x; // false
the return values vary. Not strict equality means that the equality operator will try to convert the values datatype before comparison happens.
What is strict equality?
Similar to the == equality operator, we have === strict equality operator. This works similarly except without trying to implicitly convert the variables values, it compares it strictly to the value and the value datatype and also returns a Boolean.
x === 10; //true x === "10" // false name === "Lisa" //false
If the values are not similar, it will not convert them therefore the result will false.
I hope this helps, I wanted to make it very simple and down to the basics.