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The echo command outputs a given string to the standard output pipe, typically pointing to the terminal. Although the standard output pipe can point to other interfaces - the echo command is typically used to print and display messages in the terminal. By default, the text of the displayed message...
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The Adapter Design Pattern is a popular Structural Design Pattern used in software engineering. This guide looks at how we can implement the Adapter Design Pattern in Python. Design Patterns are template-like solutions - practically recipes for solving recurring, common problems in software development. The Adapter Pattern is based upon...
In this article we'll show you how to force update a component in React.js. More specifically, we'll be giving a brief introduction to React re-renders, we'll show how to force updates in class-based components, and how to force updates in functional components. React Re-Renders React itself automatically handles re-rendering...
Counting the word frequency in a list element in Python is a relatively common task - especially when creating distribution data for histograms. Say we have a list ['b', 'b', 'a'] - we have two occurrences of "b" and one of "a". This guide will show...
Reversing a string isn't uncommon in development, and fairly popular for entry-level interview questions. With JavaScript, we have many ways to reverse a string, which is somewhat similar to reversing an array. We can use a combination of string's split() method as well as array's reverse() and join() methods (since...
The square root of a number is a very common mathematical function used in all aspects of science - physics, mathematics, computer science, etc. Square roots of numbers and expressions are very frequent in formulas in all matters of science, and especially in the way we represent reality - by...
We commonly need and want to know more about the files and directories that we are working with. Most people know one of the ways, which is simply to Right Click > Properties on the wanted folder or file to view their properties. Though, for the more terminal-savvy, here's how...
All Software Engineers that rely on external/third-party services or tools over HTTP would like to know whether their requests have been accepted, and if not - what's going on. Your role as an API developer is to provide a good experience for your users, and amongst other things -...
Thymeleaf is a templating (server-side rendering) engine used by many Java software engineers within Spring-based web applications. An important feature of any web application is the support for dynamic URLs and path variables within those URLs. Most REST APIs extensively use path variables to specify the IDs of elements they're...
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