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How do I integrate Ajax with Django applications?
...cated, but it simply means it does a request for you in the background and then handles the response. So when you do an AJAX call for some URL, you get the same data you would get as a user going to that place.
For example, an AJAX call to 127.0.0.1:8000/hello will return the same thing it would a...
HTML5 LocalStorage: Checking if a key exists [duplicate]
...ey. If the given key does not exist in the list associated with the object then this method must return null.
You should actually check against null.
if (localStorage.getItem("username") === null) {
//...
}
share
...
Why doesn't C have unsigned floats?
... So it would be very inefficient to support it.
If C++ did support it, then you would be sometimes using an unsigned float and not realizing that your performance has just been killed. If C++ supported it then every floating point operation would need to be checked to see if it is signed or not...
“git diff” does nothing
...ich have not been committed / added to the index. If there are no changes, then there is no output.
git diff [--options] [--] […]
This form is to view the changes you made relative to the index (staging area for the next commit). In other words, the differences are what you could tell git...
Is main() really start of a C++ program?
...
You tagged the question as "C" too, then, speaking strictly about C, your initialization should fail as per section 6.7.8 "Initialization" of the ISO C99 standard.
The most relevant in this case seems to be constraint #4 which says:
All the expressions in ...
Call by name vs call by value in Scala, clarification needed
...ave a function with a side-effect. This function prints something out and then returns an Int.
def something() = {
println("calling something")
1 // return value
}
Now we are going to define two function that accept Int arguments that are exactly the same except that one takes the argument i...
What are the differences between a HashMap and a Hashtable in Java?
... using HashMap for non thread safe environment. If you need thread safety then you can use Collections.synchronizedMap() or use ConcurrentHashMap which is more efficient that hashtable.
– Maneesh Kumar
Mar 30 '18 at 3:45
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Where are static variables stored in C and C++?
.... Does 0 initialized mean uninitialized or 0 per se ? If it means 0 per se then I think you should include it in your answer.
– Viraj
Oct 22 '15 at 2:37
...
Make a link use POST instead of GET
...he action of the form to the destination url, and the form method to post. Then, when your link is clicked, trigger a JS function that submits the form.
See here, for an example. This example uses pure JavaScript, with no jQuery — you could choose this if you don't want to install anything more t...
Python executable not finding libpython shared library
...ort it so that it works with eclipse? I've added it to my .profile however then Eclipse is not able to launch gdb. (Note: Adding it to ld.so.conf works however)
– Setheron
Sep 24 '12 at 18:03
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