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

PHP Basics PHP

PHP Basics

May 4th, 202571398 In this article we will teach you some PHP Basics like Data types, Mathematical operators, Comparison operators, Comments, Conditional Statements, Loops, Global functions and Functions.
Working with dates in PHP and JavaScript JavaScript

Working with dates in PHP and JavaScript

May 4th, 202531567 You can use the date function to generate a date string of your desired format. As a second parameter, you can add a UNIX timestamp representing the date that you wish the string to hold.
Useful JavaScript globals JavaScript

Useful JavaScript globals

May 4th, 20253829 Math.random() - generates a randon number between 0 and 1. You can multiply the number to get a number in a different range. Math.floor(numberHere) - it would trim down the decimal part of a float and the end result is always an integer Math.ceil(numberHere)  - it would give the integer to which a decimal is closest to;...
Cool HTM5 Features, Part 2 HTML 5

Cool HTM5 Features, Part 2

May 1st, 202571111 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

May 1st, 202531520 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

May 1st, 202551907 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

May 1st, 20253767 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.
JavaScript tips and tricks JavaScript

JavaScript tips and tricks

April 30th, 202531109 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.
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