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This article will outline several methods which can be used to check that a file exists/is readable in the Python programming language. You may wish to check whether a file exists before reading or writing to it to reduce the number of alerts you need to… Read More »Checking If A File Exists in Python, With Examples
The PHP parse_url() function processes a given URL and divides it into its individual components. Here’s how to use it. parse_url() is often used to get the host/domain name from a given URL or the path to a remote host file. Syntax for parse_url() parse_url ( $url… Read More »How to use the PHP parse_url() Function, With Examples
The ‘this‘ keyword in JavaScript is a confusing concept for some – the meaning of ‘this‘ changes based on context. This article explains what ‘this‘ is. What is Object-Oriented Programming Object-Oriented Programming is a way of structuring your code so that data is organized into objects. JavaScript supports… Read More »What is the ‘this’ Keyword in JavaScript (Object-Oriented Programming)
This article explores several ways to remove duplicate items from lists in the Python programming language. Using The dict.fromkeys() Method To Remove Duplicates From a List in Python This is the fastest way to remove duplicates from a list in Python. However, the order of the… Read More »How to Remove Duplicates From a List In Python, With Examples
This article shows you how to use the PHP isset() function to check whether a variable exists and is populated. So, it’s checking if a variable is set. Why would you want to do this? You can’t perform actions on a variable that doesn’t exist or that has… Read More »PHP isset() – Check if A Variable is Set, With Examples
This article will detail how to use the ‘accumulate()’ function in Python and provide some easy-to-follow example code. The accumulate() function in Python will process an iterable (iterables are things like lists, dictionaries, sets, or tuples – collections containing items which can be looped over) – returning the… Read More »Using the Python ‘accumulate()’ Function to Aggregate Data, With Examples
This article will cover the syntax and usage of the filter function. It will work for both Python 2 and Python 3. The filter function in Python takes an iterable (iterables are things like lists, dictionaries, sets, or tuples – collections containing items that can be looped over) and checks… Read More »Using the Python ‘filter()’ Function to Filter a List, with Examples
This article will explain the map() function in Python and show you how to use it. The Python map() function applies a given function for all items in an iterable (iterables are things like lists, dictionaries, sets, or tuples – collections containing items that can be looped over). The syntax… Read More »Using the Python ‘map()’ Function to Process a List, With Examples
This article will show you how to use the Python reduce() function to aggregate data from values in an iterable (iterables are things like lists, dictionaries, sets, or tuples – collections containing items that can be looped over) and reduce them to a single accumulated value. The code and examples… Read More »Using the Python ‘reduce()’ Function to Aggregate Data, With Examples
PHP and JavaScript are the most commonly used programming languages on the web – so which one should you use for your project? Check out our recent article on JavaScript vs. Node.js for another commonly searched programming comparison. Choosing which programming language to use for… Read More »PHP vs JavaScript – The Best Choice For Your Project
