Here’s a guide on checking whether a string contains another string in the JavaScript programming language using the includes() method. includes() Syntax string.includes(search, start) Note that: string should be a string value or variable search should be the string you are checking for start is the index (position) you… Read More »Javascript String includes() Method – Check if a String Contains Another String
The Python isinstance() function determines the type or class of a variable. Read on to find out exactly how isinstance works, with an example below. What are Types? The type of a variable determines what it can or can’t do. It determines what value the variable may take and what can be done with that value. isinstance… Read More »Python isinstance Function, With Example [Guide]
A Tuple is a type of variable in Python – a data structure containing multiple parts. It’s a collection (or array) of data – but a specific kind of collection. It’s Ordered (Indexed) Elements in a tuple are stored in order – stored with an index or position – their position in the… Read More »What is a Tuple in the Python Programming Language?
This tutorial explains how to use the try/catch/finally statements in Javascript to handle errors, with some useful examples. Sometimes an error is expected – and rather than wanting the application to halt execution on the error; you want to do something else. Other times, an… Read More »Using JavaScript try/catch/finally Statements [With Examples]
We have covered removing items from arrays in JavaScript, as well as checking whether an item is present in an array. This article will look at copying or returning a subsection of arrays using the slice() method in Javascript. slice() Syntax arr.slice([start[, end]]) Where: arr is an array or existing… Read More »Array slice() Method in JavaScript, with Examples
This tutorial will examine several methods and best practices for reading a file line-by-line in the Python programming language. Reading a file line-by-line will be useful for parsing log files, CSV spreadsheet files, or even reading files you have generated from an application yourself. Line… Read More »Read a File Line by Line in Python [3 Methods]
Looping over arrays and iterating over an object’s attributes form the foundation of a lot of application logic. The foreach construct in PHP can do both and is a crucial tool for building your application logic. PHP foreach Syntax The syntax for a foreach construct in PHP is… Read More »PHP foreach Loop [With Examples]
As you get more confident with your PHP code, your code will get more and more complex. The PHP switch statement simplifies your PHP logic, replacing messy if statements when trying to make simple decisions based on the value of a variable. Read on to find out how to… Read More »PHP switch Statement [With Examples]
Knowing which version of MySQL you are running is vital when making sure your code is compatible and that you are using supported features. Here’s how to find out which you are running. For example, older versions of MySQL lack features for handling JSON data and… Read More »How To Check your MySQL (Or MariaDB) Version [Easy]
This article shows you how to use the string.replace() method in Python to replace elements in a string of characters and includes useful examples. Python String replace Syntax The replace() function can be called on existing string variables like so: string.replace(find, new, count) Where: string is the existing string… Read More »Python String replace Method [With Examples]