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leading zeros in rails
...min , both integers in my application. For hr field, if the user enters "1" I would like Rails to automatically pad it to "01" before saving it to the database. Also for the min field if the user enter "0" it should put in as "00".
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C# : 'is' keyword and checking for Not
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12 Answers
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Convert boolean result into number/integer
I have a variable that stores false or true , but I need 0 or 1 instead, respectively. How can I do this?
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Is it safe to check floating point values for equality to 0?
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It is safe to expect that the comparison will return true if and only if the double variable h...
How to embed an autoplaying YouTube video in an iframe?
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Manipulating an Access database from Java without ODBC
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Find intersection of two nested lists?
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If you want:
c1 = [1, 6, 7, 10, 13, 28, 32, 41, 58, 63]
c2 = [[13, 17, 18, 21, 32], [7, 11, 1...
How to use the 'sweep' function
...nd use in the operation defined by FUN.
For instance, if you want to add 1 to the 1st row, 2 to the 2nd, etc. of the matrix you defined, you will do:
sweep (M, 1, c(1: 4), "+")
I frankly did not understand the definition in the R documentation either, I just learned by looking up examples.
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How to do version numbers? [closed]
...the "unstable watchout" on there. So how would you go about versioning? Is 1.0 stable? Should the build date be in the version number? Tell me what you guys think!
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Print an integer in binary format in Java
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