To change an HTML class using JavaScript, access the classList attribute of an element and do one of the following: Here are some examples: Changing the HTML class happens this way because an HTML element can have multiple classes. Notice that these approaches do not work with Internet Explorer versions before v10. This is an […]
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URL stands for Uniform Resource Locator. It is one of the basic building blocks of the Web. URL address makes it possible for a browser to retrieve resources from a server. A common example of a URL is a website URL, such as www.example.com. When you enter a URL into a URL bar, the browser
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In mathematics, the modulo gives you the remainder in the division. To calculate the remainder in the division in JavaScript, use the modulo operator (%). For example: Output: You can interpret this as sharing 10 slices of pizza with 3 eaters. As a result of a fair share, there will be one leftover slice. This
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Starting a programming blog is a great way to share your expertise and get your voice heard. It also offers you a chance to build a nice side income. These days blogging is more competitive than ever before. Running a successful programming blog involves a lot more than purchasing a domain and setting up the
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Commenting code is almost always considered bad practice. A common excuse to comment on code is to improve poorly written code. This is a mistake most beginners or even advanced developers make. Instead of commenting on code, rewrite it! The code should always be clear enough to express itself. On rare occasions, however, code comments
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In Python, a list is a data type in which you can store multiple items. To create a list, separate elements with commas in between square brackets. For example, here is a list of integers: To access list elements, use the square-bracket accessing operator [] with the index of the item. Also notice that the
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In Python, you can place an else statement at the end of a loop. The else block only runs if a break statement was not used in the loop. For example, let’s loop through a list of numbers and break the loop if a target number is encountered: Output: The target number was not found.
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In Python, you can use the map() function to apply an operation for each element of an iterable, such as a list. The map() function is a replacement for a for loop. For instance, let’s square a list of numbers using the map() function instead of a for loop: Output: The result is a new
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In Python, a for loop is used for iterating over an iterable collection of values such as a list, a tuple, a dictionary, a set, or a string. The for loop uses the following syntax: Where: The for loop works such that it starts looping through the iterable and one by one assigns each element to a
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In Python, a string is a data type that is used to represent text. A string is one of the basic data types you are going to deal with in every Python project. In Python, a string is created by wrapping characters into single or double quotation marks: This is a complete guide on Python
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