This site uses cookies to improve your experience. To help us insure we adhere to various privacy regulations, please select your country/region of residence. If you do not select a country, we will assume you are from the United States. Select your Cookie Settings or view our Privacy Policy and Terms of Use.
Cookie Settings
Cookies and similar technologies are used on this website for proper function of the website, for tracking performance analytics and for marketing purposes. We and some of our third-party providers may use cookie data for various purposes. Please review the cookie settings below and choose your preference.
Used for the proper function of the website
Used for monitoring website traffic and interactions
Cookie Settings
Cookies and similar technologies are used on this website for proper function of the website, for tracking performance analytics and for marketing purposes. We and some of our third-party providers may use cookie data for various purposes. Please review the cookie settings below and choose your preference.
Strictly Necessary: Used for the proper function of the website
Performance/Analytics: Used for monitoring website traffic and interactions
'Several problems in Distributed Systems can be seen as the challenge to determine a global state. In the classical " Time, Clocks and the Ordering of Events in a Distributed System " Lamport had laid out the principles and mechanisms to solve such problems, and the Distributed Snapshots algorithm, popularly know as the Chandy-Lamport algorithm, is an application of that work.
I remember going as a kid with my parents when they would pick out a new car. My parents didn’t want to spend a ton so we usually looked for something basic that would work. The car, of course, had to have certain features. A way to steer. Brakes. An engine. Doors. These were things all cars had and all cars had to have if anyone was going to ever consider purchasing them.
How is it possible for us to communicate securely when there’s the possibility of a third party eavesdropping on us? How can we communicate private secrets through public channels? How do such techniques enable us to bank online and carry out other sensitive transactions on the Internet while trusting numerous relays? In this post, I hope to explain public key cryptography, with actual code examples, so that the concepts are a little more concrete.
It was brought to my attention that the File plugin for Apache Cordova has no documented methods for finding the available disk space on a device. This does not mean that you cannot figure out how much space is available on your users device because you can make use of Apache Cordova’s nifty cordova.exec function. The post Get Available Free Disk Space Using Apache Cordova appeared first on The Polyglot Developer.
How is it possible for us to communicate securely when there’s the possibility of a third party eavesdropping on us? How can we communicate private secrets through public channels? How do such techniques enable us to bank online and carry out other sensitive transactions on the Internet while trusting numerous relays? In this post, I hope to explain public key cryptography, with actual code examples, so that the concepts are a little more concrete.
A recent white paper from Ghostery provides some interesting best practices for managing your site’s marketing cloud. Following is a rundown of key take aways from the report including my own comments.
'After a year of absence I am bringing back the Back to Basic Weekend Reading Series. We''ll continue to look at the fundamental works of Computer Science and Engineering, and other interesting technical works. We will start this year with a topic that spans many sciences: that of complex networks. It is relevant to everything from biology, life sciences, social sciences to computer engineering.
Over the past year I conducted performance audits on a handful of sites that all used client-side MVC’s, typically Angular but not always. Each site had their own optimizations that needed to take place to improve performance. Yet a pattern emerged: client-side MVC’s were the major bottleneck for each. It slowed down the initial rendering of the page (particularly on mobile) and it limited our ability to optimize the critical path.
Sign up to get articles personalized to your interests!
Technology Performance Pulse brings together the best content for technology performance professionals from the widest variety of industry thought leaders.
Over the past year I conducted performance audits on a handful of sites that all used client-side MVC’s, typically Angular but not always. Each site had their own optimizations that needed to take place to improve performance. Yet a pattern emerged: client-side MVC’s were the major bottleneck for each. It slowed down the initial rendering of the page (particularly on mobile) and it limited our ability to optimize the critical path.
A few years ago, I felt I had enough experience - and had put enough thought into the subject - to write a book on governance in software development. I had observed that most tech firms and captive IT organizations are largely left to self-govern, and both are pretty light touch about it. I had also observed that governance is widely misunderstood and the term is used in technology in a lot of different ways, almost universally incorrectly.
If you’re pursuing a degree in computer science, you’ll probably experience Binary Trees in one of your first semesters of school. After seeing them in one of those first semesters, you probably won’t see them again until you’re interviewing for a job. While interviewing for software engineering or programming positions, you may get many questions regarding Binary Trees and Binary Search Trees.
The EveryStep Scripting Tool by Dotcom-Monitor is a powerful macro that records scripts to perform automated monitoring of your websites' performance. There are many advanced features in the EveryStep Scripting Tool to help customize the script to trigger notifications based upon specific needs, such as recording the time between actions. The Script Watcher is an advanced feature available when editing a script that you have already recorded.
'Disk arrays, which organize multiple, independent disks into a large, high-performance logical disk, were a natural solution to dealing with constraints on performance and reliability of single disk drives. The term "RAID" was invented by David Patterson, Garth A. Gibson, and Randy Katz at the University of California, Berkeley in 1987. In their June 1988 paper " A Case for Redundant Arrays of Inexpensive Disks (RAID) " they argued that the top performing mainframe disk drives of the time could
'One of our guiding principles at AWS is to listen closely to our customers and the feedback that I am getting about our training and certification program is very positive. Many architects and engineers know the Cloud is the future of development and IT and the are gearing up to be as succesful as possible in this new normal. This is why I’m excited to announce the availability of a new Professional level certification from AWS that has been high on the list of our customers.
Recently I’ve been contributing a lot of code to open source projects on GitHub. In particular, I’ve been contributing to the AngularJS extension set, ngCordova , for Ionic Framework. When I first started contributing it was a scary process, mostly because I had only ever used Git for solo projects. I have used it for team projects, but for the majority it was my own personal projects.
To continue on the topic of popular interview questions for software engineering positions, I figured it might be appropriate to go over solving a maze that was created using a two-dimensional array. A maze created from a 2D array can be solved using recursion similar to like we did for the previous Fibonacci article I made. The post Solve A 2D Array Maze Using Recursion And JavaScript appeared first on The Polyglot Developer.
Job interviews for software engineering and other programming positions can be tough. There are too many things to study, and even then it still might not be enough. Previously I had written about a common Fibonacci number algorithm and finding duplicate values in array. Those skill refreshers were written in JavaScript. This time we are going to take a turn and validate bracket combinations using the Java programming language.
You’ll notice previously I did a post regarding the Fibonacci number , a popular interview question for programming jobs. To keep up with this trend of interview questions, we’re going to look into the different ways of finding duplicates in an array. Finding array duplicates is a good question because it tests your knowledge of algorithm design and your understanding of various time complexities.
Not too long ago I wrote a very popular tutorial for integrating Crosswalk into your Ionic Framework mobile application. Since then, the guys at Ionic released version 1.3.2 of their CLI and it makes the process even easier than I had previously demonstrated. The CLI integration is still beta and there is a lot of confusion around it, but this article should clear things up in regards to its usage.
Back on the topic of possible programming interview questions, you may at some time in your career be asked to reverse words in a string. This is a much simpler problem and may be more likely to appear on a technical phone screening. In it’s simplest form, you would assume all space separated string collections to be words. To clarify, it doesn’t matter if you’re looking at a true word or just some jumbled text separated by a space character.
The Pointer Events specification just became a W3C Recommendation. For those unfamiliar, it’s an intriguing attempt to unify pointer events regardless of the input device in use. The jQuery team threw their weight behind it this morning. …we love Pointer Events because they support all of the common input devices today – mouse, pen/stylus, and fingers – but they’re also designed in such a way that future devices can easily be added, and existing code will automatically support the new device.
When developing web applications a common way to store data is to use local storage. This NoSQL approach is great, but what if you’re coming from an RDBMS? With HTML5, you have access to the WebSQL API which allows us to use SQL queries for handling client side storage. This guide will show you how to use the WebSQL API, which is based around SQLite, in your web application.
A while back one of my subscribers asked me how to integrate the native device calendar into their Ionic Framework mobile application. I didn’t know at first, but after some research I found a great Apache Cordova plugin by Eddy Verbruggen called PhoneGap Calendar Plugin. Don’t let the plugin name fool you. PhoneGap still works on Apache Cordova, just like Ionic Framework.
I started developing mobile Android applications in late 2011. It wasn’t until 2012 that I released my first application to the Android Marketplace, now known as the Google Play Store. Up until early 2014, I only made native Android applications using the official Android SDK. As of now, I have only been using web technologies to create mobile hybrid applications for Android and iOS.
Not too long ago I contributed to the ng-cordova project on GitHub. I added Oauth functionality to many popular API providers such as Google, Facebook, and Twitter. I made a guide on how to use this added Oauth functionality on the official Ionic Framework blog , but since then I’ve received a good deal of requests to take it a step further and actually use on of the APIs beyond just Oauth.
I am very active on Stack Overflow , the Ionic Framework forums , Twitter , and even my own blog. I like helping people and I like seeing that everyone who seeks my help becomes successful in their work. A common thing I see with the people that I help is they are unfamiliar with how to properly troubleshoot their code. Previously I had written an article regarding how to view the ADB debug logs when testing, but even that has proven to have loose ends.
So you’ve released a great mobile app and have had a decent amount of downloads, but no one is rating or reviewing it. Downloads can be increased significantly by having a greater number of ratings. So how do you encourage more downloads in your Ionic Framework Android or iOS mobile application? Thanks to a library created by Alex Disler called ng-special-offer , we can make use of Apache Cordova native dialogs to prompt users to rate or review based on application open count.
We organize all of the trending information in your field so you don't have to. Join 5,000+ users and stay up to date on the latest articles your peers are reading.
You know about us, now we want to get to know you!
Let's personalize your content
Let's get even more personalized
We recognize your account from another site in our network, please click 'Send Email' below to continue with verifying your account and setting a password.
97 
Let's personalize your content