Variables without var

---

• Works, variable are global here too.
• What if we make a typo in one of the variable names? No one might notice, but the code will misbehave.

examples/js/no_var.js

colour = "green";
console.log(colour);  // green
paint_house();
console.log(colour);  // green

// There are lots of lines of code here.
// So many lines that the next part is on another page:

function paint_house() {
    color = "blue";
}