Tutorials Page 16
![React.isValidElement]()
React.isValidElement
Knowing what input type you've received is hugely important in JavaScript, which is a big reason for Flow and TypeScript's rise. One such case where it's useful to know what an object represents is if the input is a string or a React element.To detect...
![2020 Year in Review]()
2020 Year in Review
Looking back on an entire year of one's professional life is difficult, but when you consider everything that 2020 threw at us, where the hell do you even start? Forget just surviving the professional aspect of 2020, we all deserve a medal, both literally and figuratively...
10 Amazing Media Tricks Made Possible by Cloudinary
Cloudinary is my go-to place for transforming and optimizing media before delivery. By simply modifying the URL of an image or video, you can customize its size, presentation, Instagram-like filtering, and various other aspects. I previously posted about the 10 excellent image tricks and...
![What I’m Thankful For: 2020 Edition]()
What I’m Thankful For: 2020 Edition
My parents loathe when I use poor language but luckily they don't read this blog so I'll just be blunt: 2020 has been an absolute shit show. COVID-19 has been a world-wide source of devastation to lives, jobs, and our quality of life. That...
![Use a Submit Button Outside of a Form!]()
Use a Submit Button Outside of a Form!
Have you ever felt like you've been a professional developer or designer forever, and somehow not known something basic, and borderline hate yourself? That's me with a trick that was introduced to me by Miguel Piedrafita:🔥 You can submit forms from a button outside of...
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![Detect Generator Functions with JavaScript]()
Detect Generator Functions with JavaScript
In the current JavaScript climate of new syntaxes, features, and using loads of external libraries, it seems harder than ever to be sure what your functions are being given or even what the data represents. Of course, we've come up with Flow and TypeScript to help...
![git: Remove Untracked Files]()
git: Remove Untracked Files
I've always said that I know just enough about git to get the job done, but also do something destructive. Nothing embodies that more than my recent mistake. I somehow found a git repository full of untracked files and
git stashwouldn't fix it.![Node isConnected]()
Node isConnected
Every so often I discover a property in JavaScript objects that I didn't know existed, oftentimes using another trick to accomplish the same functionality. One such property I just learned about was
isConnected, a node property that attached to a context (i.e.document).Here's how to...
![Limit Promise Concurrency with pool]()
Limit Promise Concurrency with pool
Methods like
Promise.all,Promise.allSettled,Promise.race, and the rest are really excellent for managing multiple Promises, allowing for our apps to embrace async and performance. There are times, however, that limiting the number of concurrent operations may be useful, like rate limiting or simply not wanting...![How Hacker News Crushed David Walsh Blog]()
How Hacker News Crushed David Walsh Blog
Earlier this month, David’s heartfelt posting about leaving Mozilla made the front page of Hacker News. Traffic increased by 800% to his already-busy website, which slowed and eventually failed under the pressure. Request Metrics monitors performance and uptime for David’s blog, and our metrics...
