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Memory management in Qt?

I'm quite new to Qt and am wondering on some basic stuff with memory management and the life of objects. When do I need to delete and/or destroy my objects? Is any of this handled automatically? ...
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CORS - How do 'preflight' an httprequest?

...domain scripting limitations. Because my service must accommodate both GET and POST requests I cannot implement some dynamic script tag whose src is the URL of a GET request. Since I am free to make changes at the server I have begun to try to implement a workaround that involves configuring the ser...
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Select 50 items from list at random to write to file

So far I have figured out how to import the file, create new files, and randomize the list. 4 Answers ...
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Should ol/ul be inside or outside?

Which is standard compliant between these two? 5 Answers 5 ...
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What is the canonical way to determine commandline vs. http execution of a PHP script?

...ave a PHP script that needs to determine if it's been executed via the command-line or via HTTP, primarily for output-formatting purposes. What's the canonical way of doing this? I had thought it was to inspect SERVER['argc'] , but it turns out this is populated, even when using the 'Apache 2.0 Han...
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Creating a CSS3 box-shadow on all sides but one

... */ background:#fff; /* a solid background (non transparent) */ } and change #content style (remove paddings) and add shadow #content { font-size: 1.8em; box-shadow: 0 0 8px 2px #888; /* line shadow */ } add shadows to tabs: #nav li a { margin-left: 20px; padding: .7em ....
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Cross cutting concern example

... Before understanding the Crosscutting Concern, we have to understand the Concern. A Concern is a term that refers to a part of the system divided on the basis of the functionality. Concerns are two types: The concerns represent...
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Do Git tags only apply to the current branch?

...st recent commit of the branch you are currently on. You can change branch and create a tag there. You can also just refer to the other branch while tagging, git tag v1.0 name_of_other_branch which will create the tag to the most recent commit of the other branch. Or you can just put the tag an...
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Git submodule update

..., commit in that submodule directory without creating a branch to work in, and then run git submodule update again from the superproject without committing in the meantime, Git will overwrite your changes without telling you. Technically you won’t lose the work, but you won’t have a branch point...
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Set timeout for ajax (jQuery)

...tStatus, errorThrown) option. The options are "timeout", "error", "abort", and "parsererror". share | improve this answer | follow | ...