大约有 40,000 项符合查询结果（耗时：0.0706秒） [XML]
Numpy: find first index of value fast
...ments it. If you use anaconda python distribution it should already be installed.
The code will be compiled so it will be fast.
@jit(nopython=True)
def find_first(item, vec):
"""return the index of the first occurence of item in vec"""
for i in xrange(len(vec)):
if item == vec[i]:
...
Unique Key constraints for multiple columns in Entity Framework
... third approach may not necessarily be the best. (I like the first one actually.) I personally prefer not having any EF artifacts carried over into my entity classes.
– Najeeb
Nov 11 '17 at 12:45
...
How do I implement onchange of with jQuery?
...n ApplyFilter() {
var searchString = $("#tbSearch").val();
// ... etc...
}
<input type="text" id="tbSearch" name="tbSearch" />
This works quite nicely, particularly when paired up with a jqGrid control. You can just type into a textbox and immediately view the results in your jqGr...
Compiling/Executing a C# Source File in Command Prompt
...h knowledge of some sort of build tool such as NAnt, MSBuild, FinalBuilder etc. These tools provide a complete build environment, not just the basic compiler.
On a Mac
On a Mac, syntax is similar, only C sharp Compiler is just named csc:
$ csc /target:exe /out:MyApplication.exe MyApplication.cs ...
How to check if IEnumerable is null or empty?
...egil meh - I can't get excited about that. As long as the intent is clear, etc.
– Marc Gravell♦
Feb 18 '11 at 22:55
6
...
How do I assign a port mapping to an existing Docker container?
... nginx
Optionally remove the default.conf in nginx
docker exec nginx rm /etc/nginx/conf.d/default.conf
Create a new nginx config
server
{
listen 9000;
location / {
proxy_pass http://my_existing_container:9000;
proxy_http_version 1.1;
proxy_set_header Upgrade $http...
How to permanently add a private key with ssh-add on Ubuntu? [closed]
...If you want all users on the computer to use the key put these lines into /etc/ssh/ssh_config and the key in a folder accessible to all.
Additionally if you want to set the key specific to one host, you can do the following in your ~/.ssh/config :
Host github.com
User git
IdentityFile ~/.s...
Python dictionary: Get list of values for list of keys
...n list-comp:
Build list and throw exception if key not found: map(mydict.__getitem__, mykeys)
Build list with None if key not found: map(mydict.get, mykeys)
Alternatively, using operator.itemgetter can return a tuple:
from operator import itemgetter
myvalues = itemgetter(*mykeys)(mydict)
# use ...
What does the question mark operator mean in Ruby?
..., converting a character to its ASCII integer, usage in test, in RegEx'es, etc.) many of which are covered in the other answers here.
– Karl Wilbur
Sep 11 '15 at 20:36
4
...
Facebook Callback appends '#_=_' to Return URL
Facebook callback has started appending #_=_ hash underscore to the Return URL
23 Answers
...