The PHP include expression allows you to import code from another file and import code from external PHP libraries. Here’s how to use it, with examples. PHP include will execute and import PHP code from another file or library. It allows you to re-use code and… Read More »PHP include – How to Use It, With Examples
This article will explain callback functions in JavaScript – what they are, why they’re used, and how to use them. What is a Callback in the JavaScript Programming Language? A callback function is a function that is passed as a parameter to another function to be… Read More »JavaScript Callback Functions How-To, With Examples
This article will explain what JavaScript and jQuery are, how they differ, and how/why they should be used. What is JavaScript JavaScript began life in the mid-1990s as a scripting language for adding interactivity to web pages. Over time it has been developed into a… Read More »jQuery vs JavaScript – Differences? Which is Better?
Pachinko? Pichinko? Pychinko? I’ve been playing around with is idea for a while because… I don’t know; it seemed like a cool concept. That’s my whole motivation. Here’s a Raspberry Pi and Python-powered pachinko machine. This project is really basic, so it’s good for beginners,… Read More »DIY Raspberry Pi/Python Powered PACHINKO [Kitchen Build]
Here’s a short guide to refreshing a webpage with JavaScript, with examples. There are over 500 ways to trigger a page reload using JavaScript. All but one are unofficial or are the side effect of another behavior. Here’s how to do it properly. Using location.reload() Simply… Read More »How to Refresh the Page in JavaScript using location.reload(), With Examples
Following on from our article on adding and subtracting time from dates in JavaScript – here’s how to compare two JavaScript date objects. This article will explore comparing dates/times with different granularity levels – from dates that are an exact month to dates that fall in the… Read More »Compare JavaScript Dates (Day/Minute/Hour/Before/After), With Examples
This article will show you how to use the parseInt() function in the JavaScript programming language. JavaScript is notoriously loosely typed – meaning that variables of one type (e.g., strings of text, numerical values, boolean values) are converted to others, allowing you to perform mathematical… Read More »Converting to Integer with JavaScript parseInt() [Examples]
This article shows you how to use the MySQL SHOW INDEX statement to list the details of indexes and keys in a table. To use the SHOW INDEX statement, you will need to know which database and table you wish to view index information for. Looking to list the databases… Read More »The MySQL/MariaDB ‘SHOW INDEX’ Statement, With Examples
The MySQL DISTINCT operator returns only unique values from a column from a database table; duplicates are not returned. Here’s how to use it. The DISTINCT operator can be useful in many scenarios; for example, you may want to generate a list of countries you have… Read More »The MySQL/MariaDB ‘DISTINCT’ Statement, With Examples
MySQL (and its functional equivalent, MariaDB) have two things named TRUNCATE – so watch out which one you want to use or suffer dire consequences! This article outlines the difference and usages of the MySQL TRUNCATE function and TRUNCATE TABLE statement – they share similar names but do very different things.… Read More »The MySQL (and Maria DB) TRUNCATE Command, With Examples (And Warning!)
