You can use any separator you want. In fact, the separator string can be anything at all, of any number of characters.
When you have a React component who received some props (“properties”) from its parent component, and you want to pass all of those props on to this component’s child, then you need to pass the entire props object.
If you happen to know all of the props, then you could pass them all by just listing them out individually as the new props for the child component.
Let’s look at a code example of a
ParentComponent that passes all of its props to two child components,
However, it’s not obvious how to use
For example, you might have an array of
orders from which you’d like to retrieve the unique email addresses of the people who made the orders.
So, for each
order, you need to save the
When you’re a #CodeNewbie starting out on #100DaysOfCode, your Visual Studio Code setup probably leaves a lot to be desired. Here’s how to go from zero to professional web developer by installing and configuring some crucial extensions, themes, and add-ons.
What separates a professional web developer’s VS Code from a brand-new installation is the use of extensions, especially code formatters and linters that automatically detect and fix problems in your code.
Using code formatters (typically Prettier) and linters (usually ESLint) tend to be mandatory when contributing to open-source projects online. But they’re generally awesome to have even if you never plan to work on open-source. …
“Arrays are list-like objects whose prototype has methods to perform traversal and mutation operations.” — MDN Docs
But it’s also a real-life problem. Maybe your React app needs to find a list of all of the unique email addresses for your clientele.
Setobject comes in. Here’s how to use
Setto filter a list of unique primitive values, objects by reference, or objects by their contents (values).
Set in insertion order.
In other words, you can loop through a
I’m starting a livestream on Twitch today October 30. It’s called @ChillhopAndCode and will be streaming 1–9pm EDT today and then 12–8pm EST weekdays about programming and web development.
The first segment (1pm EDT / 12pm EST) is Ask Doctor Derek.
I think I took “paperless” too literally.
There’s no paper in my house, except a Halloween card from my parents, a postcard from some friends, and watercolor paper postcards for my art.
I’m sure Marie Kondo would approve, and I did work hard at the KonMari method to get here… Paper just didn’t “spark joy” in my heart.
There’s only one little problem.
I have nowhere to write anything down!
In my case, I managed to get rid of paper because I scanned everything important into a note-taking program, Evernote.
However, Evernote is not great for disposable notes — it’s much better for reference material and scanned items. …
Programming is a lot like writing — you should start with a “bad first draft” that solves the problem, then immediately edit it two or three times before you move on to the next problem.
Engineers scoff at being compared to measly “writers” — but who wrote the documentation that you used earlier today? And don’t you “write code?”
Software developers have the luxury of working in the most creative type of engineering. After all, software engineers get to call a lot more shots when building an app than civil engineers do when building a bridge.
Working in a creative profession means that you can learn a great deal from writers whose words will never execute. And one of the best pieces of writing advice is something typically recommended to solve writer’s block. …