Category Archives: Javascript

Time and Date Difference Calculator / Time Zone Converter

Posted on April 18, 2011 by GreeenGuru

Calculate the number of years, days, hours, and seconds between two dates and times. Or use the current date and time and change the time zone to find the hour difference between two time zones. It’s all available in one simple interface. Enjoy! Continue reading →

Posted in Javascript | Tagged , | 1 Comment

Use Excel to Automate Repetitive Code

Posted on April 14, 2011 by GreeenGuru

Have you ever wanted to pull data from an Excel Spreadsheet and place it into a Class or Object in your program? If you need to use a large number of repetitive structures, do you think it would be easier to create and modify them in Excel first? I’ll show you how I’ve used Excel 2007 to create a large table, then used Excel tools to automatically turn them into JavaScript Objects. Continue reading →

Posted in Excel, Javascript | Tagged , , , | Leave a comment

GreeenQuiz – An Educational Javascript Quiz Game

Posted on July 3, 2010 by GreeenGuru

See how many images you can properly identify. Subjects include geography, plants, animals, sea life, and geology. Images are randomized, so play again and again for a better score. Interesting facts about each image are displayed after you choose your answer. Continue reading →

Posted in Javascript | Tagged , | Leave a comment

Calculate Days Remaining

Posted on June 30, 2010 by GreeenGuru

Have you ever noticed that it is difficult to calculate the number of days between two dates if there are several months involved? Well here is a calculator to do this for you. The start date must be a day in the past and the end date must be a day in the future. The calculator will tell you how many days are completed, how many are remaining, and even give you a nice display of percent completed. Continue reading →

Posted in Javascript | Tagged | Leave a comment

How To Add Javascript and CSS to a Single Post in WordPress

Posted on June 30, 2010 by GreeenGuru

Want to put some Javascript on one of your posts? Not a WordPress Developer? Then stop googling because you’re in the right place. Continue reading →

Posted in Javascript | Tagged , , | 6 Comments

Convert Between Concentration Units

Posted on June 29, 2010 by GreeenGuru

Convert between grams/mL, mg/mL, µg/mL, and percent (%) solution. Continue reading →

Posted in Javascript | Tagged , | Leave a comment

Convert Between 20 Units of Information Storage

Posted on June 29, 2010 by GreeenGuru

This converter will show you the difference between binary and decimal units of information storage (Megabits vs Mebibits) and help you convert between them. Continue reading →

Posted in Javascript | Tagged , | Leave a comment

Convert Between 12 Units of Length Instantly With Javascript

Posted on June 29, 2010 by GreeenGuru

I have often searched for online unit converters and been disappointed with inaccurate, slow, sloppy converters. This is the first one I’ve written myself, and I’m using client-side Javascript for instant results without page reloads. Convert between 12 units of length. Continue reading →

Posted in Javascript | Tagged , | Leave a comment