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Where should I put tags in HTML markup?
...using external scripts that support callbacks. Many third party JavaScript APIs now support non-blocking execution. Here is an example of loading the Google Maps API asynchronously.
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When to use the different log levels
... be immediately visible on a status console.
warn:
Use of deprecated APIs, poor use of API, 'almost' errors, other runtime situations that are undesirable or unexpected, but not necessarily "wrong". Expect these to be immediately visible on a status console.
info:
Interesting runtime eve...
Using Java 8's Optional with Stream::flatMap
...:stream)
.findFirst();
Java 8
Yes, this was a small hole in the API, in that it's somewhat inconvenient to turn an Optional<T> into a zero-or-one length Stream<T>. You could do this:
Optional<Other> result =
things.stream()
.map(this::resolve)
.fl...
If strings are immutable in .NET, then why does Substring take O(n) time?
... and allows for the pointer to be passed in a P/Invoke to Win32 (or other) APIs which expect a null-terminated string.
When you do Substring(0, 5) the "oh, but I promised there'd be a null-character after the last character" rule says you need to make a copy. Even if you got the substring at the e...
How and when to use ‘async’ and ‘await’
...nd thread, but it also doesn't block. This is possible due to asynchronous API's which use callbacks instead of juggling with threads. You initiate an (I/O, socket, ..) operation and return to doing your things. When the operation is done, the OS will invoke the callback. This is what Node.js or the...
Understanding Canvas and Surface concepts
...
That is how drawing happens Canvas is the 2d drawing API. If you are going to draw o to a surface, you need to make a Canvas that points to its buffer to use the Canvas 2d drawing API to draw in to it.
– hackbod
Oct 13 '11 at 3:15
...
Writing string to a file on a new line every time
...se file.write(str(a)+'\n')
– 未来陆家嘴顶尖的投资人
May 4 '17 at 6:43
...
How to create REST URLs without verbs?
...ve 500 for uncaught exceptions
401 Unauthorized when someone accesses your API either without supplying a necessary Authorization header or when the credentials within the Authorization are invalid; don't use this response code if you aren't expecting credentials via an Authorization header.
403 For...
Latest jQuery version on Google's CDN
...vertent web breakage and no longer updates the file at
http://ajax.googleapis.com/ajax/libs/jquery/1/jquery.js. That file
will stay locked at version 1.11.1 as well.
The following, now moot, answer is preserved here for historical reasons.
Don't do this. Seriously, don't.
Linking to major ...
How to read keyboard-input?
...ov. 2018
References:
- https://pyserial.readthedocs.io/en/latest/pyserial_api.html
- *****https://www.tutorialspoint.com/python/python_multithreading.htm
- *****https://en.wikibooks.org/wiki/Python_Programming/Threading
- https://stackoverflow.com/questions/1607612/python-how-do-i-make-a-subclass-f...