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How do I raise the same Exception with a custom message in Python?
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Update: For Python 3, check Ben's answer
To attach a message to the current exception and re-raise it:
(the outer try/except is just to show the effect)
For python 2.x where x>=6:
try:
try:
raise ValueError # something bad......
Ruby on Rails: How do I add placeholder text to a f.text_field?
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With rails >= 3.0, you can simply use the placeholder option.
f.text_field :attr, placeholder: "placeholder text"
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Enable Vim Syntax Highlighting By Default
... system (Arch Linux, and Mac, thanks @totophe), it's in /usr/share/vim/vim73.
On Windows, it's in \Program Files\Vim\vim73.
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How do I use CMake?
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32
CMake takes a CMakeList file, and outputs it to a platform-specific build format, e.g. a Makefi...
Ruby on Rails: How do you add add zeros in front of a number if it's under 10?
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Did you mean sprintf '%02d', n?
irb(main):003:0> sprintf '%02d', 1
=> "01"
irb(main):004:0> sprintf '%02d', 10
=> "10"
You might want to reference the format table for sprintf in the future, but for this particular example '%02d' means to print an integer...
How to round float numbers in javascript?
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answered Feb 26 '12 at 13:24
davindavin
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How do I get a distinct, ordered list of names from a DataTable using LINQ?
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37
To make it more readable and maintainable, you can also split it up into multiple LINQ statemen...
How to make a promise from setTimeout
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answered Mar 28 '14 at 8:23
T.J. CrowderT.J. Crowder
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Regex not operator
... an NOT operator in Regexes?
Like in that string : "(2001) (asdf) (dasd1123_asd 21.01.2011 zqge)(dzqge) name (20019)"
2 An...