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Java optional parameters
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varargs could do that (in a way). Other than that, all variables in the declaration of the method must be supplied. If you want a variable to be optional, you can overload the method using a signature which doesn't require the parameter.
private boolean defaultOptionalFlagVa...
Getting the parent div of element
This should be really simple but I'm having trouble with it. How do I get a parent div of a child element?
7 Answers
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How to clear the canvas for redrawing
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A totally minor suggesting but I'd suggest context.clearRect(0, 0, context.canvas.width, context.canvas.height). It's effectively the same thing but one less dependency (1 variable instead of 2)
– gman
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Jackson databind enum case insensitive
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In version 2.4.0 you can register a custom serializer for all the Enum types (link to the github issue). Also you can replace the standard Enum deserializer on your own that will be aware about the Enum type. Here is an example:
public class JacksonEnum {
public static enum Da...
How to convert a factor to integer\numeric without loss of information?
...nction in your global environment, but you might cause problems if you actually register it as an S3 method.
– Joshua Ulrich
Apr 18 '14 at 12:03
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NOW() function in PHP
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this may be nice, but does not answer the question at all, it is not easier nor faster to do it this way
– Asped
Nov 16 '14 at 14:11
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in Ipython notebook / Jupyter, Pandas is not displaying the graph I try to plot
...ndas in Ipython Notebook, and while it gives me the object, it doesn't actually plot the graph itself. So it looks like this:
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How do I generate a constructor from class fields using Visual Studio (and/or ReSharper)?
...for me in Visual Studio 2015 community. Not sure how this isn't very publically known, but this is nice. Thanks. :)
– The 0bserver
Mar 23 '17 at 14:50
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cscope or ctags why choose one over the other? [closed]
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ctags enables two features: allowing you to jump from function calls to their definitions, and omni completion. The first means that when you are over a call to a method, hitting g] or CTRL-] will jump to the place where that method is defined or implem...
Why are iframes considered dangerous and a security risk?
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As soon as you're displaying content from another domain, you're basically trusting that domain not to serve-up malware.
There's nothing wrong with iframes per se. If you control the content of the iframe, they're perfectly safe.
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