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Add main method to code snippet (#2630)

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The code snippet wouldn't compile/run directly because of a missing
`main` method.

Also remove unnecessary `&`.
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Nicole L 2025-02-07 01:08:10 -08:00 committed by GitHub
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commit c05f0b6f02
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1 changed files with 7 additions and 5 deletions
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src/iterators/helpers.md
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@ -9,12 +9,14 @@ In addition to the `next` method that defines how an iterator behaves, the
customized iterators. customized iterators.
```rust,editable ```rust,editable
let result: i32 = (1..=10) // Create a range from 1 to 10 fn main() {
.filter(|&x| x % 2 == 0) // Keep only even numbers let result: i32 = (1..=10) // Create a range from 1 to 10
.map(|x| x * x) // Square each number .filter(|x| x % 2 == 0) // Keep only even numbers
.sum(); // Sum up all the squared numbers .map(|x| x * x) // Square each number
.sum(); // Sum up all the squared numbers
println!("The sum of squares of even numbers from 1 to 10 is: {}", result); println!("The sum of squares of even numbers from 1 to 10 is: {}", result);
}
``` ```
<details> <details>