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Handle file download from ajax post
...p that sends ajax POST requests to a certain URL. Response might be a JSON string or it might be a file (as an attachment). I can easily detect Content-Type and Content-Disposition in my ajax call, but once I detect that the response contains a file, how do I offer the client to download it? I've re...
How to print third column to last column?
...e the same between all columns, but there have to be EXACTLY ONE delimiter character between columns. So if you are dealing with programs that align their output with delimiters, it is better to use awk.
– sknaumov
Aug 21 '12 at 12:40
...
When should I use nil and NULL in Objective-C?
...ke a C pointer) in Objective-C. Like nil , NULL got no value nor address.
char *myChar = NULL;
struct MyStruct *dStruct = NULL;
So if there is a situation, when I need to check my struct (structure type variable) is empty or not then, I will use:
if (dStruct == NULL)
NSLog("The struct is emp...
Difference between framework vs Library vs IDE vs API vs SDK vs Toolkits? [closed]
... (software development kit) is a library or group of libraries (often with extra tool applications, data files and sample code) that aid you in developing code that uses a particular system (e.g. extension code for using features of an operating system (Windows SDK), drawing 3D graphics via a partic...
How to vertically center content with variable height within a div?
...o element: CSS-Tricks: Centering in the Unknown.
It doesn’t require any extra markup and seems to work extremely well. I couldn’t use the display: table method because table elements don’t obey the max-height property.
.block {
height: 300px;
text-align: center;
background: #c0...
Standard deviation of a list
... would expect. I couldn't edit the post as edits need to modify at least 6 chars...
– mknaf
Jan 6 '17 at 16:00
...
Difference between Mock / Stub / Spy in Spock test framework
...riber subscriber) {
subscribers.add(subscriber)
}
void send(String message) {
for (Subscriber subscriber : subscribers)
subscriber.receive(message);
}
}
static interface Subscriber {
String receive(String message)
}
static class MySubscriber implements ...
Why Java needs Serializable interface?
...e annoyance when dealing with pure java, like some flaws in collection and string processing in standard library. Happily there's Kryo, but it is dependency and one needs to find it first. This is how built-in serialization should have been done.
– dmitry
Aug 7...
What is the difference between and ? [duplicate]
...amic or static please can you help me here thanks or it will be treated as string ${someVar}
– shareef
Dec 8 '14 at 13:32
...
Convert two lists into a dictionary
...
dict([(k, v) for k, v in zip(keys, values)])
In the first two cases, an extra layer of non-operative (thus unnecessary) computation is placed over the zip iterable, and in the case of the list comprehension, an extra list is unnecessarily created. I would expect all of them to be less performant,...