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Make .enumerate() example self-explanatory #34880

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Jul 21, 2016
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Make .enumerate() example self-explanatory #34880

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14 changes: 7 additions & 7 deletions src/doc/book/loops.md
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Expand Up @@ -105,19 +105,19 @@ When you need to keep track of how many times you already looped, you can use th
#### On ranges:

```rust
for (i, j) in (5..10).enumerate() {
println!("i = {} and j = {}", i, j);
for (index, value) in (5..10).enumerate() {
println!("index = {} and value = {}", index, value);
}
```

Outputs:

```text
i = 0 and j = 5
i = 1 and j = 6
i = 2 and j = 7
i = 3 and j = 8
i = 4 and j = 9
index = 0 and value = 5
index = 1 and value = 6
index = 2 and value = 7
index = 3 and value = 8
index = 4 and value = 9
```

Don't forget to add the parentheses around the range.
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