大约有 11,400 项符合查询结果(耗时:0.0214秒) [XML]
What do *args and **kwargs mean? [duplicate]
... function definition’s argument list allows that function to accept an arbitrary number of arguments and/or keyword arguments.
For example, if you wanted to write a function that returned the sum of all its arguments, no matter how many you supply, you could write it like this:
def my_sum(*args)...
transform object to array with lodash
How can I transform a big object to array with lodash?
11 Answers
11
...
Batch File; List files in directory, only filenames?
This is probably a very simple question, but I'm having trouble with it. Basically, I am trying to write a Batch File and I need it to list all the files in a certain directory. The dir command will do this, but it also gives a bunch of other information; I want it to list ONLY the file names an...
What's the difference between lists and tuples?
...
Apart from tuples being immutable there is also a semantic distinction that should guide their usage. Tuples are heterogeneous data structures (i.e., their entries have different meanings), while lists are homogeneous sequences. Tuples have st...
grep a file, but show several surrounding lines?
I would like to grep for a string, but also show the preceding five lines and the following five lines as well as the matched line. How would I be able to do this?
...
How can I see the size of files and directories in linux? [closed]
...use df -m , then it shows the size of all the directory at the top level, but, for the directories and files inside the directory, how do I check the size?
...
Use of Initializers vs Constructors in Java
So I've been brushing up on my Java skills as of late and have found a few bits of functionality that I didn't know about previously. Static and Instance Initializers are two such techniques.
...
How can I reorder a list? [closed]
If I have a list [a,b,c,d,e] how can I reorder the items in an arbitrary manner like [d,c,a,b,e] ?
12 Answers
...
Why is === faster than == in PHP?
...
Because the equality operator == coerces, or converts, the data type temporarily to see if it’s equal to the other operand, whereas === (the identity operator) doesn’t need to do any converting whatsoever and thus less w...
Can someone explain the right way to use SBT?
I'm getting out off the closet on this! I don't understand SBT. There, I said it, now help me please.
4 Answers
...