Big O notation is a mathematical notation used for describing the limiting behaviour of a function. As a developer (programmer), you could use Big O to understand the performance of an algorithm. By using this concept a developer can evaluate a function’s run-time based on the input(s) passed.  A developer can also use it to compare algorithms' efficiency within the same domain. This comparison can well be for evaluating the performance. The algorithm that yields the lower Big O value is identified as the optimal one. Photo by Anni Roenkae from Pexels What is the "O" in Big O? “The letter O is used because the growth rate of  a function is also referred to as the order of the function” - wikipedia ( https://en.wikipedia.org/wiki/Big_O_notation ). In the list below you can see the various functions: Notation Name O ( 1 ) Constant O ( log...

If you have been following the recent news on Meta (formerly Facebook) you may have read that Meta recently projected their ad revenue will be cut by a staggering $10 billion in 2022 due to Apple’s new App Tracking Transparency feature (also known as ATT). This has resulted in Meta’s stock to plummet by over 20%. Photo by julien Tromeur on Unsplash - modified by Beolle So what is Apple’s ATT and how does it impact ad revenue? Apple has been releasing multiple privacy features for the last few years. This included Apple’s Mail Privacy Protection and Apple’s App Tracking Transparency feature. You can learn more about Apple’s Mail Privacy Protection in our earlier post by clicking here .  Apple’s App Tracking Transparency (ATT) was launched in iOS 14.5 and iPadOS 14.5 where it prompted users to select if they wanted the app to track their activities across other apps on the device. The prompt is displayed when the user opens an app like Facebook or Instagram for the first time o...