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jQuery mouseover example

Javascript is essentially a very good tool for tracking events on a web page and changing some view options after user actions. We can track mouse clicks, mouse movements, key’s ups and downs and a lot of other user activity. All this stuff can be done using jQuery and in this article we’ll consider its approach how to perform actions ...

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Ionic Framework – Mobile Hybrid Application Development

When I was developing our wedding application back in February, I was also trying to learn the ropes in AngularJS. It didn’t make sense for me to go with JQuery Mobile since, well I am learning angularjs. So I think through my options and ask, “Jquery mobile is essentially built in a javascript framework, is there an angularjs alternative?”. Luckily ...

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HTML5 Color picker example

In this article I will show you how to create a Color Picker using HTML5 Canvas API. I’ll first present you the API we’ll use. Then we’ll create a “color picker” you can reuse in your applications. This article will not present the use of the new <input type="color" />. 1. Introduction The way to create a color picker is ...

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JavaScript Tutorial – Part 4: Object Creation and Prototype Chains

The term “Object-Oriented programming (OOP)” has been greatly overused, and JavaScript is not one of the exceptions. For someone who comes from many years programming in Java, learning JavaScript made me realize that the correct name for the paradigm used by programming languages like Java, C++, and C# (to name a few) is not Object-Oriented but Class-Oriented programming. Because in ...

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Migrating Spring Web MVC from JSP to AngularJS

Target Audience This article is written for Spring Web MVC developers who are familiar with JSP development and who would like to understand how to migrate to a client side Javascript framework like AngularJS. Sample Pet Clinic for reference An example of a Spring Pet clinic application that we have tried to revamp as an AngularJS app with an updated ...

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Javascript Typeof Example

When writing code in whatever programming language, you will inevitably have to deal with different types of variables and treat them accordingly. What happens when you are not the one who defines your variables type? Let’s have a look! Typeof syntax typeOf can be used in two ways: as a function and as an operator. Though the syntax changes a ...

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JavaScript Objects from a Java Developer Perspective

One of the challenges for Java developers learning and applying JavaScript is the very different interpretations each language has of “objects.” I find it much easier to context switch between Java and languages such as Groovy, Ruby, Python, C#, and C++ than switching context between Java and JavaScript. The other languages’ class-based approach to object-orientation is similar enough that their ...

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HTML5 Checkbox Example

In this example, we shall take a closer look at how we can create and style checkbox elements with HTML5 markup and CSS3 styling. Creating checkboxes will be needed when you want to present the user a set of options they can choose from, which is most likely in surveys. First we take a basic approach to the html element ...

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Python: Selecting certain indexes in an array

A couple of days ago I was scrapping the UK parliament constituencies from Wikipedia in preparation for the Graph Connect hackathon and had got to the point where I had an array with one entry per column in the table. import requests   from bs4 import BeautifulSoup from soupselect import select   page = open("constituencies.html", 'r') soup = BeautifulSoup(page.read())   ...

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