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2. It’s All Just Code: Under the hood > Loops perform an action over and over
Loops perform an action over and over
Here’s a peculiar thing about most large programs: they almost always involve doing certain things over and over again. And that’s what loops are for—they tell your program to keep executing a certain set of statements as long as some condition is true (or false!).
Note
That’s a big part of why booleans are so important. A loop uses a test to figure out if it should keep looping.
IDE Tip: Brackets
If your brackets (or braces—either name will do) don’t match up, your program won’t build, which leads to frustrating bugs. Luckily, the IDE can help with this! Put your cursor on a bracket, and the IDE highlights its match:
You’ll be typing for loops in just a minute, and the IDE can help speed up your coding a little. Type for followed by two tabs, and the IDE will automatically insert code for you. If you type a new variable, it’ll automatically update the rest of the snippet. Press tab again, and the cursor will jump to the length.
