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jQuery keypress Example

The aim of this example is to show you how to capture keyboard keys events, specifically when a key is pressed. In jQuery, there is a method for that, .keypress(). The keypress() method triggers the keypress event, or attaches a function to run when a keypress event occurs. In other words, it binds an event handler to the “keypress” JavaScript ...

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jQuery UI Accordion Example

The aim of this example is to go through jQuery UI Accordion. The .accordion(options) method declares that an HTML element and its contents should be treated and managed as accordion menus. The options parameter is an object that specifies the appearance and behavior of the menu involved. Accordions are more and more finding their way into websites as navigation through ...

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Building a JSON API with Rails 5

Rails is great for making traditional server-rendered web applications. It has support for cookies, sessions, and other browser-specific functionality right out of the box. It’s also great for building JSON APIs, but why include a whole bunch of functionality that we aren’t going to use if what we want is to simply build a JSON API? That’s where using Rails ...

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jQuery Trigger Example

The aim of this example is to introduce and see cases of .trigger() method of jQuery. The trigger() method triggers the specified event and the default behavior of an event (like form submission) for the selected elements. This method is similar to the triggerHandler() method, except that triggerHandler() does not trigger the default behavior of the event. Several jQuery plugins ...

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6 ways to code faster and with less bugs

It can take ages to code what looks like a simple feature at first glance. Times flows while you have the impression that you made no measurable progress on that new feature and that everything is hopeless. Outsiders will tell you that you’re only adding a checkbox or a text field and wiring stuff together, so it should not take ...

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jQuery FadeIn Example

The aim of this example is to introduce and give examples on the usage of .fadeIn() method of jQuery. Basically, the fadeIn() method gradually changes the opacity, for selected elements, from hidden to visible. Hidden elements will not be displayed at all (no longer affects the layout of the page). This method is often used alongside with .fadeOut() method which ...

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Promises in AngularJS. Part I. Basics.

There are many blog posts about Promises in general and Promises in AngularJS in particular. Promises are a part of the ES6 (EcmaScript 6) specification, so it is worth to learn them. In this blog post, I will try to summarize the most important info about Promises in a simple and clear way. The necessary code snippets will be provided ...

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Asynchronous Google Chart Data With jQuery in Grails

Google Charts is an awesome platform to create great-looking interactive charts, from simple scatter plots to timelines or treemaps.         I needed a way to create the required data for a chart on the server-side, instead of in-lining it in the JavaScript itself — as seen in many of the examples. Why asynchronously? Although in the example below we’re ...

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Node.js: Command line programming

This article is part of our Academy Course titled Building web apps with Node.js. In this course, you will get introduced to Node.js. You will learn how to install, configure and run the server and how to load various modules. Additionally, you will build a sample application from scratch and also get your hands dirty with Node.js command line programming. ...

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