Introduction to Semantic Versioning (SemVer)
Learn how semantic versioning works and how to use it to correctly version your software.
Code Articles
30 seconds of code contains a curated collection of code articles covering a wide range of development needs. The collection spans many topics, ranging from simple coding problems to theoretical concepts and development techniques.
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JavaScript · -
JavaScript · How can I remove trailing zeros from a number in JavaScript?
When formatting decimal values in JavaScript, trailing zeros can be undesired. Here's how to deal with them.
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JavaScript · Run a callback on each animation frame with JavaScript
Ever wanted to run a function on each animation frame? This article shows you how to do it using
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JavaScript · How can I use optional chaining and nullish coalescing in my JavaScript project?
JavaScript ES2020 introduced optional chaining and nullish coalescing. Learn everything you need to know with this quick guide.
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JavaScript · Find the minimum or maximum date using JavaScript
Quickly find the minimum or maximum date in an array of dates.
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JavaScript · Check if a JavaScript string contains only alpha or alphanumeric characters
Use a regular expression to check if a string contains only alpha or alphanumeric characters in JavaScript.
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JavaScript · Get colon time from a JavaScript date
Get the time part of a Date object in the format HH:MM:SS.
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JavaScript · How can I iterate over nested iterables in JavaScript?
Ever wanted to iterate over nested iterables in JavaScript? Here's how.
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JavaScript · Generate the Fibonacci sequence in JavaScript
Generate an array, containing the Fibonacci sequence, up until the nth term, using two different approaches.
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JavaScript · How do I compare two dates in JavaScript?
Learn how you can compare two dates in JavaScript, determining which one comes before or after the other.
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JavaScript · How can I convert a Map to a JavaScript object and vice versa?
Learn how to convert between
Maps and objects in JavaScript. -
JavaScript · Compare strings regardless of case and accent
Here's a quick tip on how to compare and sort arrays of strings, ignoring case and accents.
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JavaScript · JavaScript array sorting shorthand
Learn how to quickly write code to sort JavaScript arrays with this handy one-liner.
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CSS · Style elements when in fullscreen mode
Did you know you can differentiate an element's styles when it's in fullscreen mode? Learn how to do it with this code snippet!
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JavaScript · Calculate the angle between two vectors in JavaScript
Learn how to calculate the angle (theta) between two vectors in JavaScript.
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JavaScript · What is the difference between synchronous and asynchronous code in JavaScript?
Understanding the differences between synchronous and asynchronous code is a crucial piece of knowledge for every web developer.
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JavaScript · Regular Expressions Cheat Sheet
Regular expressions are a very useful tool. Save this cheatsheet for when you need to look up their syntax and speed up your development.
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JavaScript · Using random values with pure functions
Randomness and pure functions don't seem to go hand in hand. But where there's a will, there's a way.
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JavaScript · Generate a random hex color code in JavaScript
Learn how to generate a random hexadecimal color code with a few lines of JavaScript.
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JavaScript · JavaScript property enumerability
Property enumerability dictates how JavaScript object properties behave in different scenarios.
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JavaScript · Make a JavaScript function return a promise
Learn how to convert an asynchronous function to return a promise in JavaScript.
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JavaScript · JavaScript naming conventions
Naming conventions make code easier to read and understand. Learn how to name your variables in JavaScript with this handy guide.
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JavaScript · Midpoint of two points
Calculate the midpoint between two pairs of points in a 2D plane, and beyond.
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JavaScript · Check if the current JavaScript environment is Node.js or a browser
Determine if the current JavaScript environment is Node.js or a browser.