en.javascript.info/1-js/02-first-steps/13-while-for/4-for-even/solution.md

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```js run demo
for (let i = 2; i <= 10; i++) {
if (i % 2 == 0) {
alert( i );
}
}
```
We use the "modulo" operator `%` to get the remainder and check for the evenness here.