This guide teaches you how to fix the common error ValueError: setting array element with a sequence in Python/NumPy. This error occurs because you have elements of different dimensions in the array. For example, if you have an array of arrays and one of the arrays has 2 elements and the other has 3, you’re […]
Numpy Fix “ValueError: setting an array element with a sequence” Read More »
NFTs or Non-Fungible Tokens offer a secure way to verify ownership of a digital or non-digital asset. The NFTs are powered by blockchain technology. NFTs are a relatively new concept. There is potential for NFTs to change the traditional markets as we know it. The main benefit of NFTs is the decentralized nature of the
What Is NFT? A Complete Guide to Non-Fungible Tokens [2023] Read More »
In R, you can use the %in% operator to check if a value (or values) belong to a vector. The above reads “a exists in b”. The result is a boolean value or a list of booleans. This is a comprehensive guide to using the %in% operator in R. Because checking the existence of values
The %in% Operator in R: A Complete Guide (with Examples) Read More »
String is one of the fundamental data types of JavaScript. Every application has to do some string processing at some point. String handling usually involves finding length, checking if a character exists, splitting the string based on a separator, and so on. These operations are so common, that JavaScript includes ready-made logic for carrying out
JavaScript String Methods—A Complete Guide (Updated 2023) Read More »
In Python, you mainly deal with variables that are either: But when you have a function inside another function, the outer function’s variables are neither local nor global in the eyes of the inner function. These variables are called nonlocal variables in Python. If you need to work with a nonlocal variable in Python, you
Python ‘nonlocal’ Keyword: A Complete Guide (Examples) Read More »
Measuring the execution time is common in programming to get a better idea of how a program or a part of the code is performing. This is a comprehensive guide to measuring the elapsed time in R. In this guide, there are some built-in mechanisms and examples of popular libraries’ ways of computing the execution
How to Measure Execution Time in R (5 Methods + Examples) Read More »
Dealing with number sequences in data science is common. Having the tools to easily produce sequences of numbers of different lengths, stepsizes, and start/end values is crucial. This way you can avoid having to write loops to produce number sequences over and over again. In R, you can use the built-in seq() function to create
The seq() Function in R: A Complete Guide (with Examples) Read More »
This guide teaches you how to split strings in JavaScript. How to Split a String in JavaScript? In JavaScript, the string type has a built-in method called split(). You can use this method to split a string by a specific separator, such as a blank space or a dash. This method places the split string
Split String in JavaScript: A Complete Guide (with Examples) Read More »
Date formatting is a common operation in JavaScript to make the dates look different depending on the context. Traditionally, you might think you need to use a library such as Date-fns, to format dates. But for smaller projects, using a library to format dates can be overkill because JavaScript also has some built-in data formatting
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You may have encountered javascript:void(0) in an HTML document as a href attribute like this: A common reason why developers use javascript:void(0) trick is to prevent the page from reloading when clicking a link. This comprehensive guide teaches you: Speaking of examples, I think the best way to learn what javascript:void(0) does is by taking
What Is “javascript:void(0)”—A Complete Guide (Examples) Read More »
