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Using python “with” statement with try-except block
...ated operation, in most cases the IOError should abort the whole operation and so be handled at an outer level. Using with statements, you can get rid of all these try...finally statements at inner levels.
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How to check the version before installing a package using apt-get?
...ow the version details.
It also shows which version is currently installed and which versions are available to install.
For example, apt-cache policy hylafax+
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Is right click a Javascript event?
...also accessible via the keyboard (shift+F10 or context menu key on Windows and some Linux). In this situation, the event that you're looking for is oncontextmenu:
window.oncontextmenu = function ()
{
showCustomMenu();
return false; // cancel default menu
}
As for the mouse events the...
Why are unsigned int's not CLS compliant?
...if they choose to do so.
Update: I did wonder about this some years back, and whilst I can't see why a UInt wouldn't be type safety verifiable, I guess the CLS guys had to have a cut off point somewhere as to what would be the baseline minimum number of value types supported. Also when you think ab...
UIViewController viewDidLoad vs. viewWillAppear: What is the proper division of labor?
...pushed, viewWillAppear is called. If you push another subview from there, and the user returns, viewWillAppear is called again.
– Kendall Helmstetter Gelner
Oct 16 '09 at 19:52
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How to make an image center (vertically & horizontally) inside a bigger div [duplicate]
...px;
}
(Assumes a div with id="demo" as you are already specifying height and width adding a background shouldn't be an issue)
Let the browser take the strain.
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What can I do with a moved-from object?
Does the standard define precisely what I can do with an object once it has been moved from? I used to think that all you can do with a moved-from object is do destruct it, but that would not be sufficient.
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How do I write a “tab” in Python?
... " is a space. You may not see the difference here, but open up Word/Libre and you will see the difference.
– Sativa
Apr 18 '18 at 10:38
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Gradle to execute Java class (without modifying build.gradle)
There is simple Eclipse plugin to run Gradle, that just uses command line way to launch gradle.
4 Answers
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How to declare std::unique_ptr and what is the use of it?
I try to understand how std::unique_ptr works and for that I found this document. The author starts from the following example:
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