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Logical operators (“and”, “or”) in DOS batch
...e conditions are chained on to one line. (Note that the opposite of leq is gtr, and the opposite of geq is lss.)
set res=true
if %hour% gtr 6 if %hour% lss 22 set res=false
if "%res%"=="true" set state=asleep
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PHP: Move associative array element to beginning of array
... new associative array using the known key (one).
$myArray = array('one' => $myArray['one']) + $myArray;
// or ['one' => $myArray['one']] + $myArray;
Array keys are unique, so it would be impossible for it to exist in two locations.
See further at the doc on Array Operators:
The + opera...
Full examples of using pySerial package [closed]
...tion.'
input=1
while 1 :
# get keyboard input
input = raw_input(">> ")
# Python 3 users
# input = input(">> ")
if input == 'exit':
ser.close()
exit()
else:
# send the character to the device
# (note that I happend a \r\n ca...
App Inventor 2 与 Mixly（米思齐）MixIO 平台数据通信方案完整调研 - 创客...
...议：MQTT（发布/订阅模式）- 三种角色：发布者(Publish) -> MixIO 服务器(Broker) -> 订阅者(Subscribe)- 官方主站：mixio.mixly.cn（Web 端口 8443/9090）- 支持私有部署：Windows / Linux / macOS，默认端口 8080- 数据频率限制：最大 5 次/500ms，建议...
Can someone explain in simple terms to me what a directed acyclic graph is?
...directed = the connections between the nodes (edges) have a direction: A -> B is not the same as B -> A
acyclic = "non-circular" = moving from node to node by following the edges, you will never encounter the same node for the second time.
A good example of a directed acyclic graph is a tre...
Setting transparent images background in IrfanView
...color to white.
To change the viewing color in Irfanview go to:
Options > Properties/Settings > Viewing > Main window color
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What is the optimal algorithm for the game 2048?
...a carefully optimized brute force search.
Performance
The AI in its default configuration (max search depth of 8) takes anywhere from 10ms to 200ms to execute a move, depending on the complexity of the board position. In testing, the AI achieves an average move rate of 5-10 moves per second over t...
How to have TFS 2010 detect changes done to files outside of Visual Studio?
...sual Studio and open Source Control Explorer
3- right click on the folder > "Check Out for Edit" > "Check Out"
4- right click on the same folder > "Undo Pending Changes..." > "Undo changes" > "No to All"*
I tested this workaround on a branch and it helped me a lot. But there are onl...
Show space, tab, CRLF characters in editor of Visual Studio
...
Edit > Advanced > View White Space. The keyboard shortcut is CTRL+R, CTRL+W. The command is called Edit.ViewWhiteSpace.
It works in all Visual Studio versions at least since Visual Studio 2010, the current one being Visual S...
iPhone Simulator suddenly started running very slow
...or's Slow Animations, which can be found under the Simulator Menu: Debug -> Slow Animations.
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