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Our Latest How To's

JavaScript: is number

JavaScript: is number

Deciding whether something is a number in JavaScript should be a straightforward type check (i.e., using the isNaN() function), but, as it turns out, it is a bit more tricky. How to Determine... read more »
By: Ryan Frankel, 6/19/2018
JavaScript: int to string

JavaScript: int to string

Every built-in JavaScript object type has a toString() method. This method is automatically called when the object needs to be represented as a string value (i.e., when you concatenate some... read more »
By: Ryan Frankel, 9/18/2015
Lessons in Git: merge/rebase

Lessons in Git: merge/rebase

The distributed version control system called Git has changed the way developers think of code merging and branching, compared to the previous version control systems like CVS and SVN. With Git,... read more »
By: Ryan Frankel, 6/19/2018
Lessons in PHP: Show Errors and Error Handling

Lessons in PHP: Learn How to Display, Log, and Handle Errors

PHP is the most popular server-side web programming language today, so it’s important to know how to resolve any errors that may occur when your PHP code is executed. In this article, we... read more »
By: Ryan Frankel, 1/16/2018
How Do You Screenshot on a Mac?

How Can I Take a "Screenshot" on my Mac Computer? (6 Tricks)

Taking a screenshot is something we all want to do at some point. The first personal computers in the ’80s did not support this functionality, with the exception of dumping a textual... read more »
By: Ryan Frankel, 6/1/2018
How to Use the <em>sudo</em> Command

How to Use the sudo Command

On most Linux systems, there are two basic types of user accounts: The root user (which also is called the “super user”) and the normal user. The root user account is a special... read more »
By: PJ Fancher, 7/23/2018
How to Install Gearman on Ubuntu 12.04

Install Gearman on Ubuntu 12.04 in 5 Simple Steps

Gearman is a fantastic, open-source parallel task runner and/or job server. It is simple to implement and works across many different languages. In fact, you can call workers that run in one... read more »
By: Ryan Frankel, 6/1/2018
How To Enable PHP 5.5 Opcache on Ubuntu 14.04

How To Enable PHP 5.5 Opcache on Ubuntu 14.04

With the release of Ubuntu 14.04 and the proliferation of PHP 5.5, there is going to be a migration away from Alternative Performance Cache (APC) and toward PHP’s new built-in OPcache. This... read more »
By: Ryan Frankel, 6/1/2018
PJ Fancher