17 lines
549 B
Markdown
17 lines
549 B
Markdown
**The answer: from `0` to `4` in both cases.**
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```js run
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for (let i = 0; i < 5; ++i) alert( i );
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for (let i = 0; i < 5; i++) alert( i );
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```
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That can be easily deducted from the algorithm of `for`:
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1. Execute once `i = 0` before everything (begin).
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2. Check the condition `i < 5`
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3. If `true` -- execute the loop body `alert(i)`, and then `i++`
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The increment `i++` is separated from the condition check (2). That's just another statement.
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The value returned by the increment is not used here, so there's no difference between `i++` and `++i`.
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