One major change in Python 3 is the implementation of the division operator /. In Python 2 the division yielded a floor rounded integer when dividing two integers but a float when using a float as divider or divisor. Due to Python’s weakly typed nature this behavior could lead to some issues. So PEP-238 changed…
Let’s debunk some myths about iOS development: Myth #1 – You need to code Objective-C False – since 2014 you have an alternative: Swift. This language is open source under the Apache License 2.0 (since Swift 2.2) and even runs on Linux Myth #2 – You need to be enrolled in the Apple Developer Program…
After carrying around my iPhone 6 for two and a half years I finally wanted to know how to build an iOS app. Getting started I used this tutorial from apple and rolled with the punches: Installing XCode takes ages! Download 4,6 GB 🙁 First issue: when accidentally making the wrong connection between a UI-Element…
SE-Radio Episode 281: James Whittaker on Career Strategy In Episode 281 of SE Radio James Whittaker shares his knowledge on career strategy. James Whittaker was Engineering Director at Google before he left for a position at Microsoft. He also wrote the book “How Google tests Software” In his medium article he tells us why he…
$(function() { console.log( “ready!” ); }); is the short form for: $( document ).ready(function() { console.log( “ready!” ); }); Very unintuitive, this does not work: $(“input#myInput”).bind(“change”, function(){ }); Instead of “change” You have to use “input” $(“input#myInput”).bind(“input”, function(){ });
Luckily I stumbled upon the Software Engineering Radio Episode on Rust. SE-Radio Episode 279: Florian Gilcher on Rust Main Takeaways Iron – A Web Application Framework in Rust Habitat – for application automation
My PyCharm IDE warns me if I use inefficient jQuery selectors: As I am a bit nosy I wanted to know “how” inefficient these selectors are. So I compared the inefficient $(“#items tbody”); with the optimized $(“#items”).find(“tbody”); Here is the test code: window.onload = function () { test(“unoptimized”, function () { for(var i = 0;…
Flask is a micro web framework which is really fun to use. With the following snippet You have a complete web app working within seconds. from flask import Flask # 1 app = Flask(__name__) # 2 @app.route(‘/’) # 3 def hello_world(): return ‘Hello World!’ if __name__ == ‘__main__’: app.run() #4 All this snippet does is…
Enough about books for a while. Let’s do some coding finger exercise. When I migrated from my Windows XP machine to my MacBook I made a backup of my old ICQ chats. Because I wanted to read what my wife and I chatted about ten years ago I tried to convert the old logs into…
Christmas is over, so we get rid of the Christmas Tree. Today I want to show You another Code Kata: Roman Numerals. The task seems to be quite easy. Write a program which converts a decimal number into a string which contains the equivalent as a roman literal. E.g. convert 1984 into MCMLXXXIV. The requirements…