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App Inventor 2 UrsAI2UDP 拓展 - UDP广播通信协议 · App Inventor 2 中文网
... 教育 入门必读 中文教程 IoT专题 AI2拓展 ChatGPT接入 Aia Store 开通VIP 搜索 App Inventor 2 UrsAI2UDP 拓展 - UDP广播通...
How to generate a git patch for a specific commit?
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2054
Try:
git format-patch -1 <sha>
or
git format-patch -1 HEAD
According to the docum...
Simple proof that GUID is not unique [closed]
...ain(string[] args)
{
//var reserveSomeRam = new byte[1024 * 1024 * 100]; // This indeed has no effect.
Console.WriteLine("{0:u} - Building a bigHeapOGuids.", DateTime.Now);
// Fill up memory with guids.
var bigHeapOGuids = new HashSet<G...
Convert dmesg timestamp to custom date format
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182
Understanding dmesg timestamp is pretty simple: it is time in seconds since the kernel started. ...
Check if UIColor is dark or bright?
...or white text, use the color brightness calculation above. If it is below 125, use white text. If it is 125 or above, use black text.
edit 1: bias towards black text. :)
edit 2: The formula to use is ((Red value * 299) + (Green value * 587) + (Blue value * 114)) / 1000.
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TypeError: got multiple values for argument
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232
This happens when a keyword argument is specified that overwrites a positional argument. For e...
Check that an email address is valid on iOS [duplicate]
...ing
{
BOOL stricterFilter = NO; // Discussion http://blog.logichigh.com/2010/09/02/validating-an-e-mail-address/
NSString *stricterFilterString = @"^[A-Z0-9a-z\\._%+-]+@([A-Za-z0-9-]+\\.)+[A-Za-z]{2,4}$";
NSString *laxString = @"^.+@([A-Za-z0-9-]+\\.)+[A-Za-z]{2}[A-Za-z]*$";
NSString *em...
Running a cron job at 2:30 AM everyday
How to configure a cron job to run every night at 2:30? I know how to make it run at 2, but not 2:30.
6 Answers
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Find if variable is divisible by 2
How do I figure out if a variable is divisible by 2? Furthermore I need do a function if it is and do a different function if it is not.
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