大约有 47,000 项符合查询结果（耗时：0.0663秒） [XML]
How do I append one string to another in Python?
...
10 Answers
10
Active
...
Why use Object.prototype.hasOwnProperty.call(myObj, prop) instead of myObj.hasOwnProperty(prop)?
...
109
Is there any practical difference [between my examples]?
The user may have a JavaScript ob...
To ternary or not to ternary? [closed]
...
Use it for simple expressions only:
int a = (b > 10) ? c : d;
Don't chain or nest ternary operators as it hard to read and confusing:
int a = b > 10 ? c < 20 ? 50 : 80 : e == 2 ? 4 : 8;
Moreover, when using ternary operator, consider formatting the code in a way t...
MySQL vs MongoDB 1000 reads
...ve been testing it lately. I had a table called posts in MySQL with about 20 million records indexed only on a field called 'id'.
...
Are HLists nothing more than a convoluted way of writing tuples?
...1 = f1.toList // Inferred type is List[Int]
val t2 = (23, ((true, 2.0, "foo"), "bar"), (13, false))
val f2 = flatten(t2)
val t2b = f2.tupled
// Inferred type of t2b is (Int, Boolean, Double, String, String, Int, Boolean)
Without using HLists (or something equivalent) to abstract over the ar...
How to download Xcode DMG or XIP file?
...st revision is kept in the list.)
Xcode 12
12.2 beta
12 (Requires macOS 10.15.4 or later) (Latest as of 17-Sept-2020)
Xcode 11
11.7 (Latest as of Sept 02 2020)
11.6
11.5
11.4.1 (Requires macOS 10.15.2 or later)
11.3.1
11.2.1
11.1
11 (Requires macOS 10.14.4 or later)
Xcode 10 (unsuppor...
Detect rotation of Android phone in the browser with JavaScript
...7
Gajus
50.2k5353 gold badges220220 silver badges367367 bronze badges
answered Feb 21 '10 at 23:37
jb.jb.
...
Mixing Angular and ASP.NET MVC/Web api?
...
answered Jan 13 '14 at 18:05
nullnull
7,65833 gold badges3232 silver badges3737 bronze badges
...
Bash ignoring error for a particular command
...
809
The solution:
particular_script || true
Example:
$ cat /tmp/1.sh
particular_script()
{
...
Use numpy array in shared memory for multiprocessing
...)
logger.setLevel(logging.INFO)
# create shared array
N, M = 100, 11
shared_arr = mp.Array(ctypes.c_double, N)
arr = tonumpyarray(shared_arr)
# fill with random values
arr[:] = np.random.uniform(size=N)
arr_orig = arr.copy()
# write to arr from different proces...