Swift Talk

A weekly video series on Swift programming.

#65 Playground QuickLook for Binary Trees 27:58

We create a custom Quick Look extension to visualize binary tree structures in playgrounds.

  1. Algorithms
  2. Trees
  3. Enums
September 1, 2017

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#58 Red-Black Trees 31:51

Building on the binary search tree code from episode #56, we implement red-black trees as self-balancing tree data structures and benchmark their performance.


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#56 Binary Search Trees 27:00

In this episode, we implement a binary search tree as an alternative to the sorted array from the last episode. We benchmark the performance of insertion and lookup in both data structures, with some surprising results.

#55 Sorted Arrays with Binary Search 26:51

Károly joins us to improve our sorted array implementation from episode #35 using binary search. We benchmark both implementations to learn about their real-world performance.

#33 Sequence & Iterator (Collections #2) 16:54

We continue to make the collection extension from the last episode more generic: we implement it on the Sequence protocol and discuss infinite sequences in the process.


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#32 Array, ArraySlice & Collection (Collections #1) 15:16

We show how to make an extension on array available to other collections: first, we implement it for array slices, then we implement it as a protocol extension for all collections.

#23 Splitting Arrays 24:07

We talk about a familiar but surprisingly tricky problem: splitting an array into groups of elements. We discuss the pros and cons of our own solutions along with the solutions people sent us via Twitter!

  1. QA
  2. Algorithms
  3. State
November 4, 2016