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bundler vs RVM vs gems vs RubyGems vs gemsets vs system ruby [closed]
...s of Gems. You can have different Ruby versions open in different terminal windows if you want, making it easy to test for compatibility.
Rule one when debugging is to make changes one at a time, which is true for learning to program or learning a new language. Don't be distracted, just keep it sim...
Compiling with g++ using multiple cores
...am to build up to x concurrent commands.
We use the same build scripts on Windows and Linux and using this option halves our build times on both platforms. Nice.
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SQL DROP TABLE foreign key constraint
...e Scripts
Select the tables you want to DROP.
Select "Save to new query window".
Click on the Advanced button.
Set Script DROP and CREATE to Script DROP.
Set Script Foreign Keys to True.
Click OK.
Click Next -> Next -> Finish.
View the script and then Execute.
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MySQL with Node.js
...ust go to google and search for how to install mysql server [Ubuntu|MacOSX|Windows]. But in a sentence: you have to go to http://www.mysql.com/downloads/ and install it.
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How can I troubleshoot my Perl CGI script?
...wser';
to your script. This also sends compilation errors to the browser window. Be sure to remove this before moving to a production environment, as the extra information can be a security risk.
What did the error log say?
Servers keep error logs (or they should, at least).
Error output from t...
Best way to change the background color for an NSView
...n for NSView that would allow you to set backgroundColor like you can an NSWindow or UIView, but I don't think you can override drawRect with an extension.
– BadPirate
Jun 3 '10 at 16:31
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How can I set focus on an element in an HTML form using JavaScript?
...
For plain Javascript, try the following:
window.onload = function() {
document.getElementById("TextBoxName").focus();
};
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Copying text outside of Vim with set mouse=a enabled
...art block selection. Mouse middle button pastes copied content into other window.
– micrub
Mar 18 '14 at 16:29
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Format a datetime into a string with milliseconds
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In case microseconds are 0, in windows 2.7 implementation microseconds are not printed out so it trims seconds :(
– cabbi
Nov 9 '15 at 15:37
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Add disabled attribute to input element using Javascript
...tributes/properties and for properties which do not exist in html (such as window.location). All other attributes (ones you can see in the html) can and should continue to be manipulated with the .attr() method.
Or in other words:
".prop = non-document stuff"
".attr" = document stuff
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