Conditional Statements

Conditional statements let your program choose a path.

If something is true, do one thing. If not, do another.

Think of a fork in the road with two signs.

Programs that choose

Without conditions, code always does the same steps.

With conditions, code can react to ages, scores, and clicks.

Questions become booleans

A condition is usually a true or false test.

Comparisons and logical operators build those tests.

If and else

if handles the yes path.

else handles the no path.

You will practice this in the next lesson.

Many branches

Sometimes you have more than two options.

else if chains help. switch helps too.

Keep tests simple

One clear question per condition is easier to read.

Name boolean flags in plain words when you can.

Tip: Say your condition out loud. If you cannot explain it in one short sentence, simplify it.