View Git "undo" history
Learn how to view your "undo" history using git reflog and reset your repository to a previous state.
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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Git · -
Git · Automate Git upstream branch creation
Effortlessly create upstream branches on push by enabling a simple Git config setting.
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JavaScript · How can I use JavaScript to reload the page?
Need to reload the current page using JavaScript? Here's the best way to do it, as well as some alternatives.
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JavaScript · What is CORS?
CORS (Cross-Origin Resource Sharing) trips up many developers, but it's pretty easy to wrap your head around.
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JavaScript · JavaScript Logical Operations
Get started with logical operations in JavaScript with this collection of helper functions.
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JavaScript · Introduction to the Node.js test module
The Node.js test module is a new testing tool that's still in its early stages. Learn more about it in this short introduction.
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JavaScript · Typechecking objects with Proxy in JavaScript
Learn how to type check objects at runtime using the powerful Proxy object in JavaScript.
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JavaScript · You can't extend JavaScript's Proxy object
Turns out the Proxy object is not extensible, but there's a way around its limitations.
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JavaScript · Can I create dynamic setters and getters in JavaScript?
Using the Proxy object, we can create dynamic getters and setters for objects in JavaScript.
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JavaScript · An Introduction to JavaScript Proxy
A quick introduction to the JavaScript Proxy object and where it can be used.
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JavaScript · What is the difference between Array.prototype.map() and Array.prototype.forEach()?
Which method do you reach for first? What are the differences between them? Let's find out!
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JavaScript · How are HTMLElement.innerText and Node.textContent different?
While these two properties are very similar, there are some key differences that you should be aware of.
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JavaScript · The case for trailing commas in JavaScript
Trailing commas are not without controversy. Here's why I think you should use them.
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JavaScript · Improve JavaScript scroll listener performance
Scroll listeners can easily become a performance bottleneck for your web application. Here's how to fix that.
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Git · A bash alias for copying commands from the web
Learn how to eliminate the annoyance of copying dollar signs ($) along with terminal commands from the web with a simple bash alias.
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JavaScript · How to construct a URL in JavaScript
A short guide on how to correctly construct a URL in JavaScript.
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HTML · Recommended HTML head links
Make your HTML documents more SEO-friendly by including these lines in your
<head>element. -
HTML · Recommended HTML head icon tags
Ensure your HTML documents have a proper favicon by including these lines in your
<head>element. -
HTML · Recommended social tags for HTML head
Ensure your HTML documents can be shared on social media by including these lines in your
<head>element. -
HTML · Recommended minimum HTML head
Ensure your HTML documents are properly structured by including these lines in your
<head>element. -
JavaScript · Big-O Cheat Sheet
Learn everything you need to know about Big-O notation with this handy cheatsheet.
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JavaScript · Window.location Cheat Sheet
A quick reference for the
window.locationobject. -
JavaScript · Element at a specific point on the page
Using
Document.elementFromPoint()to easily get the element at a specific point on the page. -
JavaScript · Edit URL Parameters in JavaScript
Avoid the naive approach and use a more robust method to edit URL parameters in JavaScript.