In the continuing saga of data types (we have covered text/string and numbers/integers), we continue with boolean. A funny sounding word, but a fundamental data type. With data types, we try to emulate ‘real world’ objects within our code. So words are strings and numbers are…well…numbers. Boolean is yes/no, true/false, on/off.
Think of it like a light switch (without a dimmer…that is just a wishy-washy light switch). You flip the switch one direction and it is on, and the other is off. Boolean values are used in various ways in programming. We can use it to set preferences on a program, check if the end user did something or not…basically aid in making decisions within our programs.
var x = true;
var y = false;