I've been thinking to myself that gotta get back to writing somehow. It is a time-consuming job to write a long blog post both for the reader and the writer. I see now why Twitter is so popular among the people like us (developers, designers etc.). I'd like to share some quick tips I learn here in this series.
If you are using .map, .filter, and .reduce methods a lot, you will enjoy this tip. When you are iterating over a large amount of array of items using the lazy keyword will help you boost the performance.
<pre><code class="lang-swift">let lazyFilterSequence = Array(0...100).lazy.filter { $0 % 2 == 0 }
let lazyFilteredArray = Array(lazyFilterSequence)
</code></pre>

I've been thinking to myself that gotta get back to writing somehow. It is a time-consuming job to write a long blog post both for the reader and the writer. I see now why Twitter is so popular among the people like us (developers, designers etc.). I'd like to share some quick tips I learn here in this series.

If you are using ***.map***, ***.filter***, and ***.reduce*** methods a lot, you will enjoy this tip. When you are iterating over a large amount of array of items using the ***lazy*** keyword will help you boost the performance.

```swift
let lazyFilterSequence = Array(0...100).lazy.filter { $0 % 2 == 0 }
let lazyFilteredArray = Array(lazyFilterSequence)
```

Ufuk's Blog

Ufuk's Blog

TIL: Lazy sequences