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How can I check if a var is a string in JavaScript?
...
You can get around this with...
var isString = Object.prototype.toString.call(str) == '[object String]';
jsFiddle.
But again, (as Box9 mentions), you are better off just using the literal String format, e.g. var str = 'I am a string';.
Further Reading.
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Difference in System. exit(0) , System.exit(-1), System.exit(1 ) in Java
...X) and according to range:
1-127 are user defined codes (so generated by calling exit(n))
128-255 are codes generated by termination due to different unix signals like SIGSEGV or SIGTERM
But I don't think you should care while coding on Java, it's just a bit of information. It's useful if you pl...
Passing variable arguments to another function that accepts a variable argument list
...rgs)
{
...whatever you planned to have exampleB do...
...except it calls neither va_start nor va_end...
}
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HTTP 401 - what's an appropriate WWW-Authenticate header value?
...mainder is very much dependent on that scheme. In this case realm just provides the browser a literal that can be displayed to the user when prompting for the user id and password.
You're obviously not using Basic however since there is no point having session expiry when Basic Auth is used. I assu...
Filtering collections in C#
...f ints that are > than 7, Where returns an
// IEnumerable<T> so a call to ToList is required to convert back to a List<T>.
List<int> filteredList = myList.Where( x => x > 7).ToList();
If you can't find the .Where, that means you need to import using System.Linq; at the t...
AngularJS with Django - Conflicting template tags
...ace(/\)\)/g, '}}');
textNode.text(text);
return angular.markup('{{}}').call(this, text, textNode, parentElement);
});
angular.attrMarkup('(())', function(value, name, element){
value = value.replace(/\(\(/g,'{{').replace(/\)\)/, '}}');
element[0].setAttribute(name, value);
return an...
Benchmarking (python vs. c++ using BLAS) and (numpy)
...se python for my program, what could I do to increase the performance when calling BLAS or LAPACK routines?
Make sure that numpy uses optimized version of BLAS/LAPACK libraries on your system.
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string.Join on a List or other type
...f strings from a list of ints so that String.Join(String, String[]) can be called. Only thing I'd say is that it's unusual to see this method written as an extension on String as opposed to IEnumerable<String> - I tend to always call it at the end of a long chain of extension method calls.
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How does MongoDB sort records when no sort order is specified?
... for storage engines and MongoDB's API does not mandate predictability outside of an explicit sort() or the special case of fixed-sized capped collections which have associated usage restrictions. For typical workloads it is desirable for the storage engine to try to reuse available preallocated spa...
Include an SVG (hosted on GitHub) in MarkDown
...things break in the browser.
When this question was asked (in 2012) SVGs didn't work. Since then Github has implemented various improvements. Now (at least for SVG), the correct Content-Type headers are sent.
Examples
All of the ways stated below will work.
I copied the SVG image from the questi...