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How to create the most compact mapping n → isprime(n) up to a limit N?
Naturally, for bool isprime(number) there would be a data structure I could query.
I define the best algorithm , to be the algorithm that produces a data structure with lowest memory consumption for the range (1, N], where N is a constant.
Just an example of what I am looking for: I could rep...
Check if $_POST exists
...sts and if it does, print it inside another string, if not, don't print at all.
14 Answers
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How to manually create icns files using iconutil?
...following instructions (link):
Use iconutil to Create an icns File Manually
The iconutil command-line tool converts iconset folders to deployment-ready, high-resolution icns files. (You can find complete documentation for this tool by entering man iconutil in Terminal.) Using this tool al...
What is the purpose of Flask's context stacks?
...backend". In other words, the Flask(...) application constructor has been called twice, creating two instances of a Flask application.
Contexts
When you are working with Flask, you often end up using global variables to access various functionality. For example, you probably have code that reads.....
How to execute a JavaScript function when I have its name as a string
...cript as a string. How do I convert that into a function pointer so I can call it later?
34 Answers
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Do the JSON keys have to be surrounded by quotes?
...ion on (unquoted) reserved keywords as keys, so they just required quoting all keys.
– BallpointBen
Aug 21 '18 at 23:01
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How to change text transparency in HTML/CSS?
...ly want the text to be transparent, use rgba.
#foo {
color: #000; /* Fallback for older browsers */
color: rgba(0, 0, 0, 0.5);
font-size: 16pt;
font-family: Arial, sans-serif;
}
Also, steer far, far away from <font>. We have CSS for that now.
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Naming convention - underscore in C++ and C# variables
... in a class field. What does the underscore mean? Is there a reference for all these special naming conventions?
19 Answers...
How to import the class within the same directory or sub directory?
I have a directory that stores all the .py files.
13 Answers
13
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Setting CSS pseudo-class rules from JavaScript
...ound: red; }
assuming each element you want to affect has a unique ID to allow it to be selected.
In theory the document you want is http://www.w3.org/TR/DOM-Level-2-Style/Overview.html which means you can (given a pre-existing embedded or linked stylesheet) using syntax like:
document.styleShee...