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How to understand nil vs. empty vs. blank in Ruby
...used on strings, arrays and hashes and returns true if:
String length == 0
Array length == 0
Hash length == 0
Running .empty? on something that is nil will throw a NoMethodError.
That is where .blank? comes in. It is implemented by Rails and will operate on any object as well as work like .empt...
How to Validate a DateTime in C#?
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270
DateTime.TryParse
This I believe is faster and it means you dont have to use ugly try/catches ...
How do I run NUnit in debug mode from Visual Studio?
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answered Apr 17 '09 at 10:20
Patrick McDonaldPatrick McDonald
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C++, variable declaration in 'if' expression
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fwyzardfwyzard
1,3801111 silver badges1616 bronze badges
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Testing if a checkbox is checked with jQuery
...ed, then I only need to get the value as 1; otherwise, I need to get it as 0. How do I do this using jQuery?
20 Answers
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How can I simulate an anchor click via jquery?
...r the #TB_inline add the following query string on to the anchor:
?height=300&width=300&inlineId=myOnPageContent
Change the values of height, width, and inlineId in the query accordingly (inlineID is the ID value of the element that contains the content you would like to show in a ThickBox....
How to evaluate a math expression given in string form?
...criptEngine engine = mgr.getEngineByName("JavaScript");
String foo = "40+2";
System.out.println(engine.eval(foo));
}
}
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Throwing the fattest people off of an overloaded airplane.
...ay you've got an airplane, and it is low on fuel. Unless the plane drops 3000 pounds of passenger weight, it will not be able to reach the next airport. To save the maximum number of lives, we would like to throw the heaviest people off of the plane first.
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jQuery find events handlers registered with an object
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edited Jan 10 '13 at 17:15
gnarf
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Check free disk space for current partition in bash
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207
Yes:
df -k .
for the current directory.
df -k /some/dir
if you want to check a specific d...