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What is meant with “const” at end of function declaration? [duplicate]
...4) will internally correspond to something like Foo f; Foo_Bar(&f, 4). Now adding the const at the end (int Foo::Bar(int random_arg) const) can then be understood as a declaration with a const this pointer: int Foo_Bar(const Foo* this, int random_arg). Since the type of this in such case is cons...
PyLint “Unable to import” error - how to set PYTHONPATH?
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VSCode now shows this message: The setting "python.pythonPath" defined in your settings.json is now deprecated. If I delete the python.pythonPath line it still seems to work though.
– Jesse Aldridge
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Application not picking up .css file (flask/python)
... "{{ url_for('static',filename='styles/mainpage.css') }}">
Flask will now look for the css file under static/styles/mainpage.css
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Downcasting in Java
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@UnKnown: it shouldn't. Double check that you actually compiled and ran that version and if you can still reproduce it, post a separate question (with an SSCCE).
– Joachim Sauer
Apr 20 '16 a...
How to pass anonymous types as parameters?
...rongly typed, so if, for example, Name changes to EmployeeName, you won't know there's a problem until runtime.
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node.js require all files in a folder?
...hing.js");
exports.others = require("./routes/others.js");
If you don't know the filenames you should write some kind of loader.
Working example of a loader:
var normalizedPath = require("path").join(__dirname, "routes");
require("fs").readdirSync(normalizedPath).forEach(function(file) {
requ...
How to avoid overflow in expr. A * B - C * D
...c * d
x / (a * d) = (a * b - c * d) / (a * d)
x / (a * d) = b / d - c / a
now, the integer/mod stuff:
x / (a * d) = (b / d + ( b % d ) / d) - (c / a + ( c % a ) / a )
x / (a * d) = (b / d - c / a) - ( ( c % a ) / a - ( b % d ) / d)
x = (b / d - c / a) * a * d - ( ( c % a ) * d - ( b % d ) * a)
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How to have conditional elements and keep DRY with Facebook React's JSX?
...ple of when a developer (me) tries to transfer patterns and approaches he knows from one area to another but it doesn't really work (in this case other template languages).
If you need a conditional element, do it like this:
render: function () {
return (
<div id="page">
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How can I wait for set of asynchronous callback functions?
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if (ajaxCallsRemaining <= 0) {
// all data is here now
// look through the returnedData and do whatever processing
// you want on it right here
}
});
}
Note: error handling is important here (not shown because it's specific to how you're...
In Java, how do I convert a byte array to a string of hex digits while keeping leading zeros? [dupli
... No external dependencies, nice & short. Plus, if you know you have 16 bytes / 32 hex digits, your solution condenses to an easy one-liner. Cool!
– Roboprog
Apr 6 '13 at 1:06
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