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Ignore modified (but not committed) files in git?
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check out the git-update-index man page and the --assume-unchanged bit and related.
when I ha...
Why switch is faster than if
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DanielDaniel
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Is there a simple, elegant way to define singletons? [duplicate]
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How do I space out the child elements of a StackPanel?
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Use Margin or Padding, applied to the scope within the container:
<StackPanel>
<...
How to make execution pause, sleep, wait for X seconds in R?
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How to make an AJAX call without jQuery?
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Cron jobs and random times, within given hours
I need the ability to run a PHP script 20 times a day at completely random times. I also want it to run only between 9am - 11pm.
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BLE（二）信道&数据包&协议栈格式 - 创客硬件开发 - 清泛IT社区，...
文章源自：https://www.gandalf.site/2018/11/ble_23.html
参考低功耗蓝牙（BLE）安全初探
0x1 信道BLE的物理通道即“频道，分别是‘f=2402+k*2 MHz, k=0, … ,39’，带宽为2MHz”的40个RF Channel。
其中，有3个信道是advertising channel（广播通道）...
How to design a multi-user ajax web application to be concurrently safe
... a connected user efficiently. Observer-Pattern is your friend for this.
2. Client-Side:
A javascript client that is able to have a long-running HTTP-Connection to said server above, or uses lightweight polling.
A javascript artifact-updater component that refreshes the sites content when the co...
Performance of static methods vs instance methods
...come up with normal use than those which come up with strange use.
Number 2. Makes no difference. There's a certain amount of per-class cost for each member it terms of both how much metadata there is, how much code there is in the actual DLL or EXE file, and how much jitted code there'll be. This ...