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From release 2.6, MongoDB includes a new minDistance option for geospatial queries. This is exciting because it lets you page through geospatial results very efficiently, and because it’s the first feature I’ve contributed to the database itself. I’ll measure how minDistance performs and show you an example app. Better, Faster I’m going to fill a MongoDB collection with the locations ...

Being passionate about AngularJS, me and two fellow JDriven colleagues visited the ngEurope conference. The amount of presentations during ngEurope was somewhat overwhelming, especially during the mornings without any scheduled break. Good thing I made some notes, that the slides are already available on-line and that someone published quite detailed notes for all sessions. Without all this I might simply ...

Submit form is everywhere these days, and usually done with jQuery. This time we’ll teach you how to build them using JavaScript’s submit() function, which keeps form identity, be it class, id, tag, or name. Setting it up First of all we create three files: an HTML file, a JavaScript file and a CSS file with these names: index.html, submit_javascipt.js ...

Array sorting is a key development technique applied in a variety of situations. Below we’ll show you exactly how to use Sort Array, be it sorting an array of numbers, names or structures, ascending, descending or even randomizing and reversing an array. The sort() method The sort() method sorts the elements of an array and returns the array. The sort ...

I am  Software Developer, specifically Java Developer, spending most of the time writing back-end part of the applications. I can write basic HTML/JavaScript/CSS stuff to get the things done when needed. I didn’t have much passion on HTML/JavaScript and neither I am good at web development. I just has good enough knowledge to get the front-end work done for my ...

A very common operation for most developers is String Compare, be the language they use JavaScript, C/C++, Java, whatever. To be honest, the programming language doesn’t even matter. At some point you will have to compare those strings. In this example we will learn how to do that using JavaScript. We will use: JavaScript Simple Comparison We will start by ...

A programming kata is an exercise which helps a programmer hone his skills through practice and repetition. The article assumes that the reader is familiar with the basic usage of JavaScript and Jasmine asserts and knows how to run them from his favorite IDE (ours is WebStorm or IntelliJ IDEA. Tests that prove that the solution is correct are displayed ...

I have during my college days used XMLHttpRequest object and its equivalent in Microsoft world to make Ajax calls and those Ajax calls were to the URL within the same domain. But with the advent of Webservices and whole lot of mashups being developed, Ajax calls are not restricted to same domain but the cut acorss different domains. When this ...

If you use any scripts for syntax highlighting, then you have seen that most of them have “copy to clipboard” as an option. And now you want to use that in your next project. But how? You don’t even need to worry, we’ve got you covered. Just follow along. We will use: Javascript Flash Zero Clipboard Copy to Clipboard in ...