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So far Usman M has created 6 blog entries.

Advanced Action Formulas and Functions: Reading and Writing Excel Files

Excel files or more commonly known as spreadsheets are used to store, manipulate, analyze and retrieve statistical data. Spreadsheets work as a down-featured version of database management systems. Common uses of spreadsheets include daily price charts and sales data, student result calculation, employee salary management and similar systems. In short, almost all the statistical data can

How The Resolution (DPI, Dots Per Inch) Affects Images And Video

The use of some terms in digital imaging has become a matter of great confusion for many people. It is really a cumbersome task for a layman to differentiate between Dots per Inch (DPI) and Pixels per Image (PPI). Well, both DPI and PPI are the measure of resolution for both onscreen and print images.


Barcodes have become very common in today’s world. You see a barcode on almost everything you come across nowadays. You see them on consumable goods, gift cards, labels and everywhere in supermarkets. There is no denying of the fact that traditional pricing system has effectively given way to the barcodes. Almost all types of businesses

Javascript tutorial: How to add a button that shows Modal window message using JQuery and Bootsrap

Introduction Modal windows in Bootstrap are nothing but simple dialogue boxes that are used for displaying important information to the visitors. Modal windows typically contain special offers, login box, session timeout warnings etc. Modal windows are also used to get input from the user. For instance, modal windows can contain sign up forms, purchase order or

JavaScript vs CoffeeScript vs TypeScript

JavaScript  JavaScript is  a dynamic, advanced level interpreted programming language. It is one of the three core technologies of World Wide Web alongside HTML and CSS. The majority of websites employ it and it is supported by all modern Web browsers. JavaScript is prototype-based with first-class functions, making it a multi-purpose tool, supporting functional and object-oriented programming styles. It includes an API for working with arrays, expressions and texts, but

Debugging JavaScript code using Google Chrome Developer Tools

JavaScript is a client side programming language that helps developers add interactivity to their webpages on the client side. Since, JavaScript runs within a client’s browser, it is extremely fast. Typically, JavaScript is typically used to perform client side validations, add dynamic effects and perform animations. In the inception stages of World Wide Web, the