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What is the purpose of a plus symbol before a variable?
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329
The + operator returns the numeric representation of the object. So in your particular case, i...
How to check if a model has a certain column/attribute?
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209
For a class
Use Class.column_names.include? attr_name where attr_name is the string name of y...
what's the meaning of '=?' in angularJS directive isolate scope declaration?
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limido
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answered Dec 7 '13 at 23:20
Matt ZeunertMatt Zeunert
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What is the in a .vimrc file?
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1025
The <Leader> key is mapped to \ by default. So if you have a map of <Leader>t, you...
In JavaScript, does it make a difference if I call a function with parentheses?
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edited Nov 26 '16 at 22:42
Nissa
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Closing JDBC Connections in Pool
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121
When using Connection Pool, should one close the Connection at the end? If so, isn't the purpo...
How to check if object (variable) is defined in R?
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R> exists("somethingUnknown")
[1] FALSE
R> somethingUnknown <- 42
R> exists("somethingUnknown")
[1] TRUE
R>
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Advantage of creating a generic repository vs. specific repository for each object?
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edited Aug 23 '13 at 15:00
Brody Robertson
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What's the difference between findAndModify and update in MongoDB?
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answered May 28 '12 at 3:21
Asya KamskyAsya Kamsky
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