Commonly you see the Uncaught TypeError: cannot set property innerText of null error if you try to access an HTML element on a page before it appears. The solution. Move your JavaScript from the head to the body tag below the HTML element you are trying to access. An Example Situation Let’s say you are […]
Uncaught TypeError: cannot set property ‘innerHTML’ of null Read More »
To see where pip installs packages on your system, run the following command: And replace <package_name> with the actual name of the package. Example: NumPy Location For example, let’s see where NumPy is installed: Output: Here you can see that the location field says the package is installed at /usr/local/lib/python3.8/site-packages. The location obviously depends on
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To learn JavaScript or any other programming language, the number one thing you must do is write a lot of code. Learning JavaScript is not possible without loads of repetition and consistent practice. This guide teaches you how to learn JavaScript fast. Of course, you can become a proficient self-taught JavaScript developer at your own
How to Learn JavaScript Fast — Follow These 7 Steps (in 2023) Read More »
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 Programming, “Foo” means “a value of nothing”. It’s a placeholder for when a programmer cannot come up with a better alternative. “Here are two variables, let’s call them foo and bar!” Value like “Foo” also highlights the fact that the choice of name is not the relevant part of the code example. You see
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Hex color is one way to represent colors on a computer. In the hex color, each color has three hexadecimal components in format #RRGGBB, where: The RR, GG, and BB components range from 00 to FF. In other words, the color components can have numeric values from 00 to 99. And because 9 is the
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The binary number system is a numeral system that only knows 0 and 1. In the “traditional” decimal system, there are ten primitive number characters to use: 0, 1, 2, 3, 4, 5, 6, 7, 8, 9. When you count the numbers, you have to reuse the primitive numbers after reaching 9. This is because
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Case Styles in Programming Developing software at scale requires you to write code that is easy to manage. One of the main ways to enforce manageable code is by writing code that is easy to read. The easiest way to write readable code is by naming objects logically and carefully. For example, you don’t want
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Camel case is a naming convention for naming objects with compound words in programming. Here are some examples of the camel case: Camel case works such that: What Problem Does Camel Case Solve? To write software at scale, one has to write readable and understandable code. One way to make code easy to understand is
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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! This is why the
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