大约有 45,000 项符合查询结果(耗时:0.0608秒) [XML]
How to pick just one item from a generator?
... would like an item, use
next(g)
(or g.next() in Python 2.5 or below).
If the generator exits, it will raise StopIteration. You can either catch this exception if necessary, or use the default argument to next():
next(g, default_value)
...
How to join two JavaScript Objects, without using JQUERY [duplicate]
...
There are couple of different solutions to achieve this:
1 - Native javascript for-in loop:
const result = {};
let key;
for (key in obj1) {
if(obj1.hasOwnProperty(key)){
result[key] = obj1[key];
}
}
for (key in obj2) {
if(obj2.has...
How do I test an AngularJS service with Jasmine?
...).toEqual(1);
}
//we only need the following line if the name of the
//parameter in myTestFunction is not 'myService' or if
//the code is going to be minify.
myTestFunction.$inject = [ 'myService' ];
var myInjector = angular....
What is the argument for printf that formats a long?
...
Yep Dr Beco; further, just %l triggers warning: unknown conversion type character 0x20 in format [-Wformat]
– Patrizio Bertoni
Jul 29 '15 at 10:53
add ...
Explicitly select items from a list or tuple
...ilt-in, but you can make a subclass of list that takes tuples as "indexes" if you'd like:
class MyList(list):
def __getitem__(self, index):
if isinstance(index, tuple):
return [self[i] for i in index]
return super(MyList, self).__getitem__(index)
seq = MyList("foo...
How to convert PascalCase to pascal_case?
If I had:
31 Answers
31
...
Why does int i = 1024 * 1024 * 1024 * 1024 compile without error?
...A VALUE(although 2147483648L is) in Java. The compiler literally does not know what it is, or how to use it. So it whines.
1024 is a valid int in Java, and a valid int multiplied by another valid int, is always a valid int. Even if it's not the same value that you would intuitively expect because t...
How to disable JavaScript in Chrome Developer Tools?
...gt; Settings > "Disable Javascript" -> Refresh works! Would love to know WHY it's not working in regular mode. I haven't found any tickets for this issue. Seems to only happen to certain users.
– Phil Tune
Oct 29 '14 at 19:16
...
Checking if a string can be converted to float in Python
... a list of strings and converts them to integers or floating point numbers if possible. Doing this for integers is pretty easy
...
Split a string by another string in C#
...e it suddenly drags my attention from stream level to byte level. Anybody know why C# library guys designed the Split method like this? If there is a good reason, I can probably try to appreciate it despite the inconvenience.
– foresightyj
Jan 23 '15 at 5:24
...
