Ivan Dimov

Ivan is a student of IT, a freelance web designer/developer and a tech writer. He deals with both front-end and back-end stuff. Whenever he is not in front of an Internet-enabled device he is probably reading a book or traveling. You can find more about him at: http://www.dimoff.biz. facebook, twitter

Author's Posts

JavaScript tips and tricks JavaScript

JavaScript tips and tricks

June 16th, 202531113 Use objects/classes to encapsulate your application logic and try not to pollute the global variable scope as this can cause frustrating problems such as libraries not working from variables being overridden. Below is an example how you can structure your application’s logic in a simple way without polluting the global scope.
Cool HTM5 Features, Part 2 HTML 5

Cool HTM5 Features, Part 2

June 16th, 202581123 The tel input type stands for telephone while the others should be self-evident. It is good to start using them where appropriate as there are subtle differences in the browsers when you use them. For example, on a mobile phone the tel input type might show the numbers first in the user’s browser and the date and time input types would...
Cool HTML5 features HTML 5

Cool HTML5 features

June 15th, 202541526 You can be more specific, for example, by stipulating image/png instead of the wildcard image/* which accepts all kinds of images. When you add the accept attribute and the user is shown the file dialog, he would be able to select only files from that particular type with some browser magic.
Sanitizing input with PHP and JavaScript JavaScript

Sanitizing input with PHP and JavaScript

June 15th, 2025101915 In PHP, there are a variety of ways in which you can sanitize the user input, depending on your needs. The htmlspecialchars function allows you to transform every special character in HTML into text so that the user cannot enter code in his input. It is good to use the function when you want to show a user input, stored or coming from...
Examining variable types in PHP PHP

Examining variable types in PHP

June 15th, 20255776 In PHP, there are a range of built-in functions which you can call to check variable types. They return a Boolean value - true if the variable is of that type and false if it is not.
Validation of HTML5 documents HTML 5

Validation of HTML5 documents

June 12th, 202523611 When creating pages, it is important for your website to be valid. That means there should be no errors in the HTML code of your webpages. This is not mandatory but it will provide a boost for your website; both in terms of consistency and search engine rankings.
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