USE FLOW CONTROL
All programming languages include statements that control the flow of the
program under various conditions. The if-else statement is the
one most commonly used, and it works just the way you'd expect: If this
happens, do A, else if that happens, do B.
Conditional operators are used to create conditions in your scripts. JavaScripts's conditional operators are shown in the following table.
| Conditional Operator | Description |
==
|
equality (what's to the left of this operator is exactly the same as what's to the right) |
<
|
less than |
>
|
greater than |
<=
|
less than or equal to |
>=
|
greater than or equal to |
!=
|
not equal to |
The assignment operator (=) is an arithmetic operator. The equality operator (==) is a conditional operator. One of the most common mistakes in beginning JavaScript is to use the assignment operator in a condition rather than the equality operator.
