At some point you are going to want to know some information about the RAM on your Raspberry Pi — how much you have, how much is used, how much is free, etc. Thankfully, there is a simple terminal command to give you this information.
Open a terminal window and enter this command:
free -h
This will give you a quick glance at the RAM usage. The -h flag will display the information in a more human readable format.
If you want to know how hot your Raspberry Pi is running, it’s very easy to get the CPU temperature. Open a terminal window and enter the following command:
vcgencmd measure_temp
This will then display the temperature of your CPU in Celsius.
Had a not so obvious issue pop up recently in a Vue.JS app I’ve been working on for a while now. I have a table of members and if you click the member name, you get redirected to their profile page. There is a click event on the name link so it will store the profile id then use the router to push the new route. The issue is that when you click the link, you get the following error:
BUT if you click the link a second time you get redirected to the profile page as expected. This error is basically saying you can’t navigate to the same page you are on. Which is not what I was trying to do. So I was confused.
Turns out everything was working properly in my code I just didn’t account for it all. Here is my original link:
<a href="#" @click="individualStoreKeyAndRedirect(data)">{{ data.value }}</a>The trouble is the href=”#” is firing before my @click event fires. So, Vue’s router thinks I’m trying to go to the same page. To make the behavior what I wanted, I had to prevent that from firing and just fire my @click event.
Thankfully, Vue makes it pretty easy. Just add .prevent to your @click event. My new link looks like this:
<a href="#" @click.prevent="individualStoreKeyAndRedirect(data)">{{ data.value }}</a>And now everything works the way I wanted and no console error!
The MacOS treats files which start with a period (.) as a hidden file. Say, something like .gitignore. And there are times where you want to actually see these hidden files. To do so, you can run some Terminal commands that affect the system. OR you can do a simple key command. Like so:
⌘⇧. will toggle the AppleShowAllFiles settingThis way you can turn them on/off quickly and easily without mucking in the Terminal.
Windows 10 has a built in Clipboard Manager which will let you copy multiple items — text or images — to your clipboard. Then later you can select from the list of items copied and paste them back in the order you choose.
You can turn it on (it’s off by default) by going to :
Start > Settings > System > Clipboard
Here you can also sign in so you can sync your clipboard across devices.
To use the Clipboard Manager, instead of Ctrl+V to paste you use:
Windows logo key + V
This shows a list of things copied and you select which one you want.
You can also select the triple dots menu on an item for additional options.
More Information:
https://support.microsoft.com/en-us/help/4028529/windows-10-clipboard
Sometimes, when you have a long file, it’s convenient to fold/collapse all the code regions so you can get a big picture of your file. In Visual Studio (the full blown IDE from Microsoft), it’s a simple keyboard shortcut combination
Ctrl+m Ctrl+oThankfully, Visual Studio Code has something similar. To fold ALL regions use
Ctrl+k Ctrl+0Then just use the following to unfold the code file
Ctrl+k Ctrl+jThe nice thing about this is that all the sub regions are folded as well. So you can simply open one region and all the items inside are still folded.
Reference: https://code.visualstudio.com/docs/getstarted/tips-and-tricks#_keyboard-reference-sheets
The following command will tell you which version of Vue CLI you have installed:
vue --versionThis command will tell you which version of Vue you are using in your project:
npm list vue| Symbol | Key |
|---|---|
| ⌘ | Command (cmd) |
| ⌥ | Option (alt) |
| ⇧ | Shift |
| ⌃ | Control (ctrl) |
| ⇞ | Page Up (Pg Up) |
| ⇟ | Page Down (Pg Dn) |
| ⌫ | Delete (Backspace) |
| ⌦ | Forward Delete |
| ⏎ | Return |
| ←→↑↓ | Arrow Keys |
| ↖ | Home |
| ↘ | End |
| ␣ | Space Bar |
| ⇥ | Tab |
If you are intrigued by the idea of switching from the resource hog that is Google Chrome to the new kid on the block, Microsoft Edge BUT you have some killer Chrome extensions you just can’t live without…Then fear not! You can configure Edge to use a Chrome plug-in.
First, go get Edge. Go on. I’ll wait…
Ok, now that Edge is installed you can add your extensions. First, click the triple dots in the upper right-hand corner. Then select Extensions from the menu.
Before you go to the effort of getting a Chrome extension, first check for the extension in the Microsoft Store (link in the settings). What you want may already be there.
If you don’t find what you’re looking for then toggle the Allow extensions from other stores setting in the bottom left-hand corner.
Then navigate to the Chrome Web Store and search for your desired extension. Click the Add to Chrome button.
Edge will give you a pop-up asking if you want to add the extension, click the Add Extension button.
This will add the extension and you should get a notification that the extension was added to Edge.
Badda-bing, badda-boom! Your Chrome extension should now be installed in Edge and running just like the ones from the Microsoft Store. With full rights and privileges. You can disable or delete them just the same.
One last nice thing Microsoft has done is to segregate the other sourced extensions from those from their own store. That way you can easily find them.
As a developer, I have to copy and paste. A lot! Sometimes I need to copy several items from different locations and then paste them into the same file. This can be very tedious with the traditional Ctrl+C then Ctrl+V process. To help remedy this, I use Comfort Clipboard Pro, a very powerful clipboard manager. I realize for some this may be a bit of overkill or they don’t wish to spend the money on a solution.
Thankfully, Visual Studio 2019 has a feature which can help. Simply copy several items in a row using your preferred method — from the file menu or with a key command. Then place your cursor where you wish for the copied items to be pasted. Next, go to Edit in the file menu and select the Show Clipboard History option (alternately you can press Ctrl+Shift+Insert).
This will display a popup list of the things you’ve just copied. Click one of the items in the list.
The item you selected will be pasted into your file where your cursor currently sits.
That’s it! Quick. Simple. It didn’t require any additional software. And it didn’t cost you anything. Hope that helps!