NSNotifications Implementing custom NotificationCenter in Swift NSNotificationCenter is a classic API on iOS. It's used so that classes can register for notifications by name and execute the function/block whenever the notification with same name is fired somewhere else in the project. Today, we will see how to implement NSNotificationCenter API in Swift from scratch. Here
iOS Drag and Drop on iOS using Swift Hello folks, it's been a while since I wrote my last article. Today we're going to learn how to implement drag and drop feature on iOS using Swift. To see in advance what we're going to achieve by the end of this tutorial, please watch the following video, To summarize
New York Applying for a Schengen Visa (Again!) I am planning to go to Netherlands again this June. My last visit was done made in March 2019 for AppDevCon. It was amazing time, and by the time I came back I realized that my application to speak at DutchPHP has been accepted and I had to prepare my
Interview Why technical recruiting process is broken - 2 This is the second part of my series on why I hate the current technical recruiting process. Disclaimer: This post is not my typical post where I write goodie goodie stuff and nice things. This post is a result of my 3 months of in vain efforts. Efforts I took
Interview Why technical recruiting process is broken - 1 It is 10 O'clock and a quite summer night. A perfect time to read the book or go to bed. But no, I am going to write about something I am trying to get off my chest. 4 years ago, when I graduated with masters degree I kept applying to
Interview Histogram Problem - Calculating the total volume of water held This is another interview problem I came across recently. This is the classic and routine interview question. To summarize, problem can be described as follows, Given n non-negative integers representing an elevation map where the width of each bar is 1, compute how much water it is able to trap
Interview Dutch National Flag / 3 Way partition problem Recently while going through interview questions, I came across this interesting problem - Called 3-way partitioning or also called as a Dutch National flag problem. In gist, the problem is given an array containing 3 distinct elements, (Say 0, 1 and 2) sort them in the increasing order. When you
iOS List of Interview Questions for iOS Developers Over the years of iOS development has taught me some interesting facts about Objective-C and Swift. Some of them I learned from my own experience and most of them either from senior colleagues or other online resources (Attributions added to the end). Based on this knowledge I have compiled a
JavaScript JavaScript Closures Fun JavaScript closures are fun. Not just because they're are sometimes hard to understand, but they make interview questions interesting to tackle. Today I am going to write about one such JavaScript interview question involving nested closures. You may probably find it easy to reason about once solution is presented, but
Interview Interviews We all go through the phase of interview at least once in a life. (Unless you are a son or son in law of big businessman, in which case you interview less fortunate ones). I said at least once, because there are some smart and creative folks who crack the
JavaScript Creating Bubble sort simulation with JavaScript Couple of years ago I interviewed with one of the software companies. Interview went really well. Position required extensive knowledge of Drupal and other basic web technologies such as PHP, JavaSCript and CSS. I did not encounter any specific technical questions in our 45 minutes talk. But it was quite
