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How expensive is RTTI?
...where I've looked just says that "RTTI is expensive," but none of them actually give any benchmarks or quantitative data reguarding memory, processor time, or speed.
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ERROR 1045 (28000): Access denied for user 'root'@'localhost' (using password: YES)
...ms instead of programming. Recently, I have been following a manual to install a software suite on Ubuntu. I have no knowledge of mySQL at all, actually. I have done the following installations on my Ubuntu.
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commandButton/commandLink/ajax action/listener method not invoked or input value not set/updated
...ecified. Watch out with include files! You can use UIForm components in parallel, but they won't process each other during submit. You should also watch out with "God Form" antipattern; make sure that you don't unintentionally process/validate all other (invisible) inputs in the very same form (e.g....
How to convert java.util.Date to java.sql.Date?
...tually not available in the JDBC/Java7 paradigm.
– sf_jeff
Aug 17 at 1:28
@sf_jeff Java 7 support is covered in the bu...
remove legend title in ggplot
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This will remove all legend titles. For more local control, the guide = guide_legend() command works. To remove the fill legend title, but to keep the color legend title, e.g. scale_fill_brewer(palette = "Dark2", guide = guide_legend(title = ...
How to set tbody height with overflow scroll
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Finally! I'm now able to have a fixed height, scrolling table body, fixed headers, adjustable column widths .... all without javascript! Thank you!!
– Matt Hancock
Dec 6 '15 at 23:13
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How do I directly modify a Google Chrome Extension File? (.CRX)
... I found this:
The Google Chrome Extension file type is CRX. It is essentially a compression format. So if you want to see what is behind an extension, the scripts and the code, just change the file-type from “CRX” to “ZIP” .
Unzip the file and you will get all the info you need. This way ...
Correct approach to global logging in Golang
...d a pointer to that log.Logger?
log.New returns a *Logger which is usually an indication that you should pass the object around as a pointer. Passing it as value would create a copy of the struct (i.e. a copy of the Logger) and then multiple goroutines might write to the same io.Writer concurre...
How do I disable the “Press ENTER or type command to continue” prompt in Vim?
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I'm not sure how to do it globally though for one command:
:silent !<command>
Be sure to include a space after silent
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Ruby: Easiest Way to Filter Hash Keys?
...with just the choices in it.
choices = params.select { |key, value| key.to_s.match(/^choice\d+/) }
or you can use delete_if and modify the existing Hash e.g.
params.delete_if { |key, value| !key.to_s.match(/choice\d+/) }
or if it is just the keys and not the values you want then you can do:
p...