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Random color generator
...#colorpad").css("background-color", getRandomColor());
}
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<div id="colorpad" style="width:300px;height:300px;background-color:#000">
</div>
<button onclick="setRandomColor()">...
Positioning element at center of screen
...%);
}
Easy! JSFiddle here: http://jsfiddle.net/LgSZV/
Update: Check out https://css-tricks.com/centering-css-complete-guide/ for a fairly exhaustive guide on CSS centering. Adding it to this answer as it seems to get a lot of eyeballs.
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Serializing class instance to JSON
... a limited set of object types by default, all built-in types. List here: https://docs.python.org/3.3/library/json.html#encoders-and-decoders
One good solution would be to make your class inherit from JSONEncoder and then implement the JSONEncoder.default() function, and make that function emit th...
Why is @autoreleasepool still needed with ARC?
... 10000 each time round the outer for-loop.
Update:
Also see this answer - https://stackoverflow.com/a/7950636/1068248 - for why @autoreleasepool is nothing to do with ARC.
Update:
I took a look into the internals of what's going on here and wrote it up on my blog. If you take a look there then you...
Add context path to Spring Boot application
...h
For more common properties of Spring Boot refer to the link below:
https://docs.spring.io/spring-boot/docs/current/reference/html/common-application-properties.html
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How do I rename a Git repository?
...name a remote repository as follows:
Go to the remote host (for example, https://github.com/User/project).
Follow the host's instructions to rename the project (will differ from host to host, but usually Settings is a good starting point).
Go to your local repository directory (i.e., open a comman...
How to disable action bar permanently
...
ActionBar actionBar = getSupportActionBar();
actionBar.hide();
Source:
https://developer.android.com/guide/topics/ui/actionbar.html
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Response.Redirect with POST instead of Get?
...An example of how it works can be seen in the source to the "kensa" tool:
https://github.com/heroku/kensa/blob/d4a56d50dcbebc2d26a4950081acda988937ee10/lib/heroku/kensa/post_proxy.rb
And can be seen in practice if you turn of javascript. Example page source:
<!DOCTYPE HTML>
<html>
...
CSS background image alt attribute
...
@Antoni4 See here: web.archive.org/web/20160728160132/https://developer.yahoo.com/…
– Ian Lunn
Jun 14 '17 at 13:57
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NumPy or Pandas: Keeping array type as integer while having a NaN value
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This capability has been added to pandas (beginning with version 0.24):
https://pandas.pydata.org/pandas-docs/version/0.24/whatsnew/v0.24.0.html#optional-integer-na-support
At this point, it requires the use of extension dtype Int64 (capitalized), rather than the default dtype int64 (lowercase)....