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What really happens in a try { return x; } finally { x = null; } statement?
... "exception-handled block" I think this scenario has nothing to do with exceptions and exception handling. This is about how .NET implements the finally resource guard construct.
– g.pickardou
Oct 30 '15 at 12:35
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Can hash tables really be O(1)?
...g at all bits then performance will become O(m). The hash function however does not have to be O(m) - it can be O(1). Unlike a cryptographic hash, a hash function for use in a dictionary does not have to look at every bit in the input in order to calculate the hash. Implementations are free to look ...
Programmatically generate video or animated GIF in Python?
...ame duration for each frame but a fixed frame rate would be fine too. I'm doing this in wxPython, so I can render to a wxDC or I can save the images to files, like PNG. Is there a Python library that will allow me to create either a video (AVI, MPG, etc) or an animated GIF from these frames?
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iPhone Keyboard Covers UITextField
...de the field (and everything above it) up with an animation, and then back down when you are done. You may need to put the text field and some of the other items into another view and slide the view as a unit. (I call these things "plates" as in "tectonic plates", but that's just me). But here is...
Cannot ping AWS EC2 instance
... edited Nov 1 '17 at 14:18
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answered May 30 '15 at 9:39
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CSS Box Shadow Bottom Only [duplicate]
How can I do this? I want my element to look as though it has a shadow underline. I don't want the shadow for the other 3 sides.
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Using an image caption in Markdown Jekyll
I am hosting a Jekyll Blog on Github and write my posts with Markdown. When I am adding images, I do it the following way:
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using data-* attribute with thymeleaf
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Yes, th:attr to the rescue Thymeleaf documentation - Setting attribute values.
For your scenario, this should do the job:
<div th:attr="data-el_id=${element.getId()}">
XML rules do not allow you to set an attribute twice in a tag, so you can't have mor...
Select count(*) from multiple tables
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why do you need dual? what does that mean?
– Ray Lu
Mar 3 '09 at 12:44
31
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using awk with column value conditions
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I tried this but it doesn't work I don't know why. I double checked with grep and the text was in there. :(
– user1687130
Feb 6 '13 at 21:33
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