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Converting 'ArrayList to 'String[]' in Java
How might I convert an ArrayList<String> object to a String[] array in Java?
16 Answers
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Get number of digits with JavaScript
...y What's going on here. toString() and String() same build-in function for converting digit to string, once we converted then we'll find the length of the string by build-in function length
How to obtain a Thread id in Python?
...id on Linux:
import ctypes
libc = ctypes.cdll.LoadLibrary('libc.so.6')
# System dependent, see e.g. /usr/include/x86_64-linux-gnu/asm/unistd_64.h
SYS_gettid = 186
def getThreadId():
"""Returns OS thread id - Specific to Linux"""
return libc.syscall(SYS_gettid)
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Getting the exception value in Python
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If you don't know the type/origin of the error, you can try:
import sys
try:
doSomethingWrongHere()
except:
print('Error: {}'.format(sys.exc_info()[0]))
But be aware, you'll get pep8 warning:
[W] PEP 8 (E722): do not use bare except
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How to print a stack trace in Node.js?
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or just sys.puts(new Error().stack) (after adding the system module)
– sirhc
Aug 9 '10 at 4:48
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Convert a bitmap into a byte array
Using C#, is there a better way to convert a Windows Bitmap to a byte[] than saving to a temporary file and reading the result using a FileStream ?
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JSON serialization of Google App Engine models
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A simple recursive function can be used to convert an entity (and any referents) to a nested dictionary that can be passed to simplejson:
import datetime
import time
SIMPLE_TYPES = (int, long, float, bool, dict, basestring, list)
def to_dict(model):
output = {}...
async await return Task
...int> and you'll return plain int not the Task<int>. Compiler will convert the int to Task<int> for you.
private async Task<int> MethodName()
{
await SomethingAsync();
return 42;//Note we return int not Task<int> and that compiles
}
Sameway, When you return Task&...
File Upload ASP.NET MVC 3.0
...he file to the App_Data (or equivalent) folder first, before attempting to convert it to a byte array, or can you do this direct from the file on disk?
– Brett Rigby
Mar 22 '13 at 21:43
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ImportError: No module named Crypto.Cipher
... odd, but this fixed the issue on OS X Mavericks for me. I needed sudo for system wide libs.
– Paul
May 19 '14 at 9:09
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