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Is “double hashing” a password less secure than just hashing it once?
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270
Hashing a password once is insecure
No, multiple hashes are not less secure; they are an essent...
CSS attribute selector does not work a href
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+100
Use the $ after your href. This will make the attribute value to match the end of the string.
a[href$='.pdf'] { /*css*/ }
JSFiddle...
How to write header row with csv.DictWriter?
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150
Edit:
In 2.7 / 3.2 there is a new writeheader() method. Also, John Machin's answer provides a si...
Instantiating object of type parameter
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answered Nov 18 '08 at 20:24
ericksonerickson
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HTML5 doctype putting IE9 into quirks mode?
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answered Jun 30 '11 at 3:49
David WickDavid Wick
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How does !!~ (not not tilde/bang bang tilde) alter the result of a 'contains/included' Array method
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edited Nov 3 '16 at 20:41
Peter Mortensen
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Create objective-c class instance by name?
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answered Jul 23 '09 at 19:59
Chris McCallChris McCall
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String.replaceAll without RegEx
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190
Just use String.replace(CharSequence,CharSequence) rather than replaceAll.
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How to check if variable's type matches Type stored in a variable
...om:
bool b9 = typeof(Tiger).IsAssignableFrom(x.GetType()); // true
bool b10 = typeof(Animal).IsAssignableFrom(x.GetType()); // true! A variable of type Animal may be assigned a Tiger.
or with the type variable
bool b11 = t.IsAssignableFrom(x.GetType()); // true
bool b12 = t.IsAssignableFrom(x.GetT...
What do (lambda) function closures capture?
...reate a new scope each time you create the lambda:
>>> adders = [0,1,2,3]
>>> for i in [0,1,2,3]:
... adders[i] = (lambda b: lambda a: b + a)(i)
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>>> adders[1](3)
4
>>> adders[2](3)
5
The scope here is created using a new function (a lambda, for bre...