大约有 47,000 项符合查询结果（耗时：0.0608秒） [XML]
Iterate through object properties
... I feel that I should mention, however, that Object.keys(obj) is now a much better solution for getting the keys of the object itself. Link to the Mozilla documentation: developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/…
– Kyle Richter
Apr ...
How to avoid explicit 'self' in Python?
...ereby break code.
One extreme example: you can write a class without any knowledge of what base classes it might have, and always know whether you are accessing a member or not:
class A(some_function()):
def f(self):
self.member = 42
self.method()
That's the complete code! (some_funct...
Get the name of the currently executing method
...
Great solution Mark The best solution at now. Great job
– jonathanccalixto
Sep 19 '16 at 8:13
...
Assign one struct to another in C
...truct S {
char * p;
};
struct S s1, s2;
s1.p = malloc(100);
s2 = s1;
Now the pointers of both structs point to the same block of memory - the compiler does not copy the pointed to data. It is now difficult to know which struct instance owns the data. This is why C++ invented the concept of use...
Dialog to pick image from gallery or from camera
...
Camera permission is now needed to open camera intent @tasomaniac
– Saad Bilal
Feb 17 '17 at 10:32
27
...
Can anonymous class implement interface?
...
@ZainRizvi No, it didn't. As far as I know, it's still in production. The concern raised seemed strange to me then, and arbitrary at best to me now. It was basically saying "Don't use a framework, things will break!". They didn't, nothing went pop, and I'm not sur...
What's the fastest way to loop through an array in JavaScript?
...
The blog post this answer is based on is now almost 4 years old, and a lot has changed in js engines in that time, see my answer below for an updated comparison.
– jondavidjohn
Aug 31 '11 at 3:01
...
Looping through a hash, or using an array in PowerShell
...not; because I, like most people, like my code to run as fast as possible. Now, your argument is changing to running jobs in parallel (potentially using multiple computers/servers) ... which of course is faster than running a job in series from a single thread. Cheers!
– Vertig...
Function pointers, Closures, and Lambda
I am just now learning about function pointers and, as I was reading the K&R chapter on the subject, the first thing that hit me was, "Hey, this is kinda like a closure." I knew this assumption is fundamentally wrong somehow and after a search online I didn't find really any analysis of this compari...
'npm' is not recognized as internal or external command, operable program or batch file
... and hit enter)
At the prompt (C:\>) type npm and hit enter; you should now see some help text (Usage: npm <command> etc.) rather than "npm is not recognized..."
Now you can start using npm!
share
|
...