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15/02/2025
Let's talk about Swift compiler. what is swift runtime? What compiler does swift uses? Can you draw a flow diagram of how a typical swift code like if (true) { print("hello, world!") } goes through various stages of comp...
17/03/2020
The wikipedia definition of a software design pattern is A reusable solution to a commonly occuring problem in the context of software design. Gang of four book in 1994 formalised a number of design patterns. Here we are...
12/03/2020
When someone says something is dynamic, it usually means things could change. Dynamic array, meaning the content of the array could change, or a dynamic system could mean a system that is robust and can adapt to differen...
26/03/2019
Race condition happens when 2 or more threads access the shared data at the same time and change its value at the same time resulting in unexpected state. A simple example is the typical ATM withdraw problem. ATM withdra...
26/03/2019
Deadlock is a situation when two or more threads are waiting on each other to be completed causing both to be locked and not able to continue. A practical example of a deadlock is ! Let's see an example in swift. here, t...
19/03/2019
It's been a while I've updated my posts. Here are some new tips that makes coding with swift cool. @autoclosure @autoclosure attribute defines an argument that automatically gets wrapped in a closure. It's used to defer...
04/12/2016
It's a common requirement to tweak different configurations of the app for debug purposes. The general way of doing it is using Settings.bundle where the Settings are located inside Setting of the iPhone. It has a few dr...
20/11/2016
Property List is a convenient and flexible format for saving data. It was originally defined by apple, to use in iOS devices and later extended to various apps. Plist internally is actually an XML file and can easily be...