Order of Operations 2

In a previous lesson we covered the order of operations. This is a rule of math that says which operators act first.

In JavaScript and other programming languages, there are more operators than the basic math operators:

• addition
• subtraction
• multiplication
• division
• modulus

We also have the comparison operators:

• greater than
• less than
• equal to
• greater than or equal to
• less than or equal to

These operators go after the math operators.

Try this code:

7 - 3 < 2 + 4

First JavaScript evaluates the math operators, then it evaluates the comparison operator against the new values:

7 - 3 < 2 + 4 // original expression
4 < 6 // after math operators are evaluated
true // after comparison operator is evaluated

Remember that math operators always go first, then the results are compared.

When the comparison operator runs, the result is true or false as always.