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How can I check whether a option already exist in select by JQuery
...her way. This seems more visible to the process, to me, and less prone to error by not judging the length of whitespace, for instance, like .length might do.
– vapcguy
Dec 4 '15 at 0:23
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Split an NSString to access one particular piece
...ond "S" should not be "lower case" (substringWithRange) or you will get an error like "this method doesn't exist".
– Marcos Reboucas
Apr 13 '15 at 12:51
add a comment
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How to get whole and decimal part of a number?
...d($my_var, 1)
will return the same result, but sometime with a small round error.
How do I tell CPAN to install all dependencies?
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If you get an error Can't locate object method "install" via package "xxx" at -e line 1. add a "+" right before the module name.
– Yann Sagon
Mar 28 '14 at 16:12
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Extracting specific columns in numpy array
...fic columns and store them in another numpy array but I get invalid syntax errors.
Here is the code:
9 Answers
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Assign variable value inside if-statement [duplicate]
...nside if.
I wouldn't recommend it. The problem is, it looks like a common error where you try to compare values, but use a single = instead of == or ===.
It will be better if you do something like this:
int v;
if((v = someMethod()) != 0)
return true;
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Overwriting my local branch with remote branch [duplicate]
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@greggles: Any errors? After the last command, HEAD must point at origin/branch.
– knittl
Oct 18 '12 at 18:10
1
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How to show the loading indicator in the top status bar
...eProcessQueue completionHandler:^(NSURLResponse *response, NSData *data, NSError *error)
{
[[RMActivityIndicator sharedManager]decreaseActivity];
}
share
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improve this answer
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Lists: Count vs Count() [duplicate]
...rable<TSource> source)
{
if (source == null)
{
throw Error.ArgumentNull("source");
}
ICollection<TSource> is2 = source as ICollection<TSource>;
if (is2 != null)
{
return is2.Count;
}
int num = 0;
using (IEnumerator<TSource> ...
Rails: select unique values from a column
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This throws an error with Rails 5.1 / AR 5.1 => undefined method `uniq'
– Graham Slick
Aug 11 '17 at 12:06
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