Conditions
Conditions
Video Transcript
In this this section, we're going to learn about conditions.
A condition is an expression that can be evaluated as either
True or False. This is done using comparison
operators, logic operators, and booleans.
Many of the comparison operators might be familiar from your math
class. These include:
| Operator | Meaning |
|---|---|
| < | less than |
| <= | less than or equal |
| > | greater than |
| >= | greater than or equal |
| == | equal |
| != | not equal |
For example, the expression
15 < 20 would be
True because 15 is indeed less than 20, and
"hello" == "goodbye" would be False because
the phrases "hello" and "goodbye" are not the same.
We can also use the logic operators
not (to turn an
expression from True to False and vice
versa), and (to combine two expressions that must both be
True), and or (to combine two expressions
where at least one must be True).
Booleans are another type of variable which can only have one of two
values, either
True or False.