Suppose we need to loop the objects in users array in the following json.
12345678910{ "users": [ { "userID": "foo" }, { "userID": "bar" } ]}
12345678910111213let data = JSON.parse(jsonString);console.log(data...
The IPIP.net provides a free GeoIP database that works well in CN. The database uses ipdb format and can be integrated in Nginx use either the HTTP module or the stream module. The module requires compilation. Here’s the step:
Download and extract the Nginx source code from Nginx download page. ...
The Application Dashboard is easy to navigate through the installed apps because it put the apps in the categories automatically. However, there are some apps we do not want them to appear. They maybe the dependencies of other applications and we rarely open them.
In the following screenshot, yo...
Life is a lot easier with Async/Await, you can write clean code to handle async operations, for example:
12345678async (arg) => { try { let result = await doFirstJob(arg); return await doSecondJob(result); } catch (e) { throw new Error('Oops!'); ...
A firmware update failure bricked my ER-X completely, it reboots immediately after startup.
Luckily there is an official manual on firmware recovery here.
Here are the steps to recover a bricked router.
Utilities
USB to TTL adapter
TTY client
TFTP server
Patience
TFTP ServerDownload recovery ...
Damn! The pool won’t join!As a beginner, I started learning how to multiprocessing with pool by copying the snippets from a tutorial to Pycharm.
1234567891011121314151617181920import multiprocessingdef task(num): print("{} started".format(num)) msg = "Success" return num, msgp...
Assume that you have encountered the following problem.
Here’s the procedure to solve the problem.
Disable Memory integrity under Settings > Windows Security > Device Security > Core Isolation
Disable Device Guard in Group Policy > Computer Configuration > Administrative T...
It is easy to set up a disk raid using ZFS. Many tutorials / documents give the examples using # zpool create tank /dev/sdb /dev/sdc /dev/sdd.
However, this is not a good practice, descibed in the ZFS on Linux FAQ, the names of the devices are not persistent. Any device change, for example, unpl...
GoalSetup a WebDAV file server and a local webpage with Caddy, then expose the services to the Internet using FRP.
LocalhostCaddy123456789101112131415161718192021# /etc/caddy/confighttp://:80/webdav/ { log stdout basicauth / Apocalypse 4W9yaFeC8szfsJGF basicauth / Zaychik aKQG96Bjm...
QQ空间官方没有提供消除账户内容的选项，删除黑历史只能靠脚本解决。从网上找了两个能用的。
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