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Test if string is a number in Ruby on Rails
...t(string) rescue false
end
And then call it like this:
my_string = '12.34'
is_number?( my_string )
# => true
Extend String Class.
If you want to be able to call is_number? directly on the string instead of passing it as a param to your helper function, then you need to define is_number? as...
Test if a string contains any of the strings from an array
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14 Answers
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What's the Best Way to Shuffle an NSMutableArray?
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74
You don't need the swapObjectAtIndex method. exchangeObjectAtIndex:withObjectAtIndex: already ex...
Using C# regular expressions to remove HTML tags
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154
As often stated before, you should not use regular expressions to process XML or HTML documents....
Difference between malloc and calloc?
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Get the generated SQL statement from a SqlCommand object?
...method?
– Benoittr
Oct 23 '13 at 16:41
6
@Benoittr, you can see an implementation of ToBooleanOrD...
How do I fix certificate errors when running wget on an HTTPS URL in Cygwin?
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241
If you don't care about checking the validity of the certificate just add the --no-check-certif...
Can't launch my app in Instruments: At least one target failed to launch
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harrywynnharrywynn
2,64633 gold badges1515 silver badges1212 bronze badges
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Java: int array initializes with nonzero elements
...ed with a situation where it is not. Such a behavior occurs first in JDK 7u4 and also occurs in all later updates (I use 64-bit implementation). The following code throws exception:
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Subtract days from a date in JavaScript
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RobG
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answered Aug 18 '09 at 20:41
Stephen WrightonStephen Wrighton...