What Is Pascal Case? Pascal Case is a coding convention for naming objects such that the first letters of each compound word are capitalized. Such a convention is used because programming languages don’t allow you to separate words with spaces. Here are some examples of the pascal case: What Problem Does Pascal Case Solve? In […]
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To undo the most recent commit in Git, you can run the git reset HEAD~ command. As a concrete example: The git reset HEAD~ command undoes the most recent commit but doesn’t change the state of your files. After this, make the necessary changes and use git add to re-commit. Then commit the changes. You
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Version control means tracking and managing changes to software code. With version control, software development teams are able to work faster and more efficiently. A version control tool allows for improved collaboration. The software development team can work simultaneously on different parts of the codebase without collisions. This guide teaches you what version control is
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In Git, there are two easy commands you can use to delete a branch both locally and remotely. To delete a Git branch locally, run the following command: The delete a Git branch remotely, run the following command: Remember that Git doesn’t let you delete a branch you’re currently working on. Thus, you need to
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This is a comprehensive guide to concatenating strings in Python. This guide demonstrates 7 ways in which you can combine strings. Besides, you’ll learn what approaches are great and what is not so great. Here’s a short overview of the different approaches: The + operator The += operator The String.join() method The old % formatter
How to Concatenate Strings in Python (in 7 Ways) Read More »
In R, the outer() function runs a function on two vectors, creating a result matrix. The generic syntax for using the outer() function is as follows: Where x and y are vectors (or scalars) and the FUN is a function that is called on each combination of the elements in the two input vectors. This
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To efficiently deal with dataframes and lists in R, you need to be able to access the columns or values in an easy and readable way. This is where you can use the dollar sign operator ($). This operator retrieves the value or column by a name after which you can easily read, modify, or
How to Use $ in R: A Complete Guide (with 6 Examples) Read More »
One of the main benefits of writing computer programs is to automate tasks based on inputs and conditions. Adding logic to code is possible through decision-making if…else statements. For example, a square root function should only compute the square root of an input if its value is positive. Otherwise, the function should warn about false
R if…else Statement: A Step-by-Step Guide (with Examples) Read More »
Programming is a time-consuming task. Putting together even something really basic takes a long time. One of the key parts of becoming an efficient programmer is the ability to use existing solutions to your advantage. This is where libraries come in handy. A programming library is a collection of useful resources for developers. In most
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In Programming, “Foo” means nothing. It’s a placeholder value for when a programmer cannot come up with a better alternative. Value like “Foo” also highlights the fact that the choice of name is not the relevant part of the code example. You see “Foo” a lot in programming tutorials and lecture slides. Also, if more
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