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Getting Started With Elasticsearch

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Elasticsearch is open source search system based of Apache Lucene. this is a brief introduction, you can find more information on Elasticsearch Official Site or   Wiki . What are features of Elasticsearch? Here are list of features of Elasticsearch. Real Time Search and Analytic . Distributed Data (Scales Horizontally)  Based on Apache Lucene High Availability Full Text Search JSON Based Documents RESTful API Multi Facets Geo Location Search Open Source How to install ElasticSearch? Download the latest version from elasticsearch.org/download . Then unzip it or use following command in console to download Elasticsearch. curl -L -O http://download.elasticsearch.org/PATH/TO/LATEST/$VERSION.zip unzip elasticsearch-$VERSION.zip cd elasticsearch-$VERSION Now move to unzip folder and run following command {elasticsearch unzip folder path}/bin/elasticsearch It will start Elasticsearch How to use ElasticSearch? To interactive with data usi
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AngularJs Tutorial: Getting Started

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This tutorial will help you to create a dynamic web application using power of AngularJs. ·   What is AngularJs AngularJs is javascript MVC framework (maintained by Google) which molds static HTML application to dynamic web application. That was a brief introduction, you can find more information on Wiki and AngularJS Site . AngularJs follows MVC pattern to separate out model from view and manage it by controller. See this image Goal of using AngularJs is to convert static HTML template to dynamic (Angular) template.   ·   How to convert static template to dynamic (Angular) Template Now consider the following static HTML template which contain list of movies title. <html> <head></head> <body>   <h1>Upcoming Movies</h1> <ul>     <li>       <span>Godzilla</span>     </li> <li>       <span>Batman vs Superman</span>     </li> <li>       <span>Sta
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MongoDB: Getting Started With CRUD Operations

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MongoDB is a No-SQL open source database system that stores information in documents. MongoDB was created with excellent performance and accessibility in mind. A document is a collection of fields and value pair combinations that are stored in BSON (binary representation of JSON records), which is the native data type in most languages. MongoDB uses collections to hold groups of documents. Now let’s see the basic operations that can be handled in MongoDB.           Create           Read           Update          Delete collectively called the "CRUD operation" Create Operation MongoDB performs atomic creation operations on single documents. It adds a new document to the selected collection. db .{ collection_name }. insert ({ field => value , field => value , field => value , }); The value could be a simple datatype or something more complex (document or array). The Crea
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How To Watermark A Photo Using PHP

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Hello Friends, This blog post will help you to create a watermark image using PHP. But first let’s get introduce yourself with watermarking. What is Watermark? Watermark is a marker which is embedded inside image (other media). It is use to identify the ownership. Why we need Watermarking? Watermarking helps to maintain integrity   and avoid unauthorized use for images (other media source also). For example let’s suppose you are have image hosting website and you provide unique and beautiful images to user. If you want only authorize user should download your images then you need to provide image preview with watermarking and original image to authorized user only so that unauthorized user cannot misuse it. Now let look at some coding stuff. First example shows watermarking images with text, normally we use copyright text. And second example show watermarking with watermark image. Watermarking using text // set water mark text $watermark = 'wate
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JavaScript : Flash Title For New Message

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Whenever you chat with your friends on Facebook or Gmail, you often see new blinking message which appears on Title of browser when you’re on other webpage or tab. I always feel how they would notify us with this message. After some research I found that it is a small JavaScript which makes this happen. This tutorial post will help you to flash Title of web browser for new message. Let’s look at some JavaScript stuff var message_interval = null; var user = 'Zainul'; var message = 'Hello There'; var odd_even = 0; var old_title = document.title; /** * Show title message when new message arrives */ function showTitleMessage() { // set time interval message_interval = setInterval(function() { // reset title and execute next task when user returs to this tab $(window).bind('focus', function() { clearInterval(message_interval); document.
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CSS: How To Create Custom Scrollbar For Webkit Supported Browsers

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In this tutorial, we will learn how to create a custom scroll bar using custom CSS styles. Custom scrollbars are becoming increasingly popular, and I'm excited to learn more about them. A scrollbar can be customised for a variety of reasons. The default scrollbar, for example, can make an app's UI look inconsistent across various versions of windows, thus we can benefit from having a single style here. This tutorial will help to create a custom scrollbar. Let's see how One of the most interesting aspects of these scrollbars is that they may be rendered in a variety of styles for different HTML elements on the same webpage. We will see the implementation of such a scrollbar for Webkit-supported browsers. First we will look at the basic CSS properties of the scrollbar. ::-webkit-scrollbar              ::-webkit-scrollbar-thumb        ::-webkit-scrollbar-track        ::-webkit-scrollbar-button       ::-webkit-scrollbar-track-piece  ::-webkit-scrollbar-cor
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Preload Images Using Javascript

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Preload Image is technique which helps browser to render images with minimum delay. Today we will see example of image gallery. Gallery contain 5 images which load images one after another whenever user clicks next and back button. This is a basic image gallery scenario which is used in all possible website, then why we need preloaded images for this gallery? Now a day’s most of website becoming faster and user expectation is increasing. Suppose your website doesn’t use preload image technique for gallery and a user visits any image gallery from Google Plus or Facebook and visits your website gallery. Then that user always prefer those websites rather than yours. Why? Because your website load one image at a time. When user click on next button, then only gallery load image and user has wait till it get loaded. To avoid this situation gallery needs to download all images
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