To calculate the time difference between two dates in R, you can use the built-in difftime() function. For example: Output: This function supports seconds, minutes, hours, days, and weeks as the time unit. But to calculate the time difference in months or years, you should rely on a library. This is a comprehensive guide to […]
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When dealing with URLs in your code, you need a mechanism that easily lets you access the different parts of the URLs. This is a complete guide to parsing URLs in JavaScript. You will learn how to access the specific parts of your URLs, such as the hostname, file path, or query parameters. This guide
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JSON doesn’t support comments by design. This means you cannot use traditional code comments (//, /* .. */, or #) to add information as a comment in your JSON data. The only workaround for adding comments in JSON is by adding a JSON element with a key such as “_comment” and a value that is
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What Is Kebab Case? Kebab case is a case style where compound words are separated by dashes. Kebab case is thus very similar to the snake case, which is a more popular case style in software development. The most notable difference in the kebab case is usability. Most programming languages don’t allow using kebab case!
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To reverse a string in Python, you can use negative slicing as follows: For example, let’s reverse a string “Testing”: Output: To learn more approaches to reverse a string in Python, feel free to read along. You’ll also better understand how the above example really works. If you want to have a quick look, please
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To list the files that have changed between two commits in Git, get the SHAs of the commits and run: Alternatively, you can specify the start and end commits using the HEAD. For example: This lists the files that have changed between 15th and 8th commit. This comprehensive guide teaches you how to check the
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In Python, you can find the absolute value of a number with the built-in abs() function. For example, let’s figure out the absolute value of the number -10: Output: This is a quick but comprehensive guide to finding absolute values in Python. This guide teaches you what is an absolute value and how to find
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An odd number is a number you cannot divide into two equal parts. An even number is a number you can evenly divide into two parts. In Python, you can use the modulo operator (%) to check if a number is odd or even. For example: This guide teaches you how to check if a
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To change the commit message of the most recent commit, you can use the git commit –amend -m command: For new Git users: Changing the commit message means rewriting history. If you haven’t pushed the commit yet, renaming won’t cause problems. But to rename a pushed commit, you need to be careful. If your teammate
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JSON is a popular text-based data format that is used to transmit data in network requests. JSON has an easy-to-read syntax and it’s a lightweight data format. This is what makes JSON such a favorable data format. As a web developer, dealing with JSON is almost impossible to avoid. When dealing with JSON, one of
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