Tutorial on updating website using Git over SSH

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In a previous tutorial, we updated a webpage on GitHub Pages by using Git over https.  In this tutorial, we will update the same website using Git over SSH.  This requires that we generate an...

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Sass Mixin and Sass Placeholder Tutorial

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Sass is a CSS pre-processor that generates CSS.  In this tutorial, we will learn about Sass mixin.   Consider this mixin that I typed into SassMeister.com … The Sass is on the left panel and...

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How to generate SSH keys

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There may be times when you need to generate SSH keys, such as when you use Git over SSH, you will need to provide your public SSH key to the server that you want to connect to. Your SSH key consists...

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Tutorial on using GIT instead of FTP to deploy files

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As of this writing in 2014, many web hosts (especially cloud hosting) are using Git instead of FTP to deploy files to their servers.  Some hosts don’t even allow FTP any more.  While...

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Tutorial Creating GitHub Site

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This tutorial will show you how to create a simple static site GitHub site.   Yes, it is free.  You need to first sign up a free GitHub.com account.  For each account, you get one GitHub site...

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jQuery Tables with sort and search

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In this tutorial, we will use DataTables.net (a jQuery plugin) to make a table with sort and search capabilities.  Demo here. We start with a normal HTML table.  But make sure to use the thead and...

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Using Sass to write media queries

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Sass can help you do less typing when it comes to writing media queries. For example, when doing responsive web design, it is common to write CSS that looks like this… .box { padding:...

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How to validate email address format in PHP?

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You need to validate email address format in PHP whenever user enters an email in a form.  If you are building a contact form, this is essential in order to prevent form hijacking. To validate an...

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How to use PHP to validate that input is alphanumeric

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Let’s say that we want to validate that an input from a PHP form is alphanumeric.  We use PHP function preg_match like … To try out, you can construct page with form that submit to...

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