大约有 2,317 项符合查询结果（耗时：0.0244秒） [XML]
What is in your Mathematica tool bag? [closed]
...ion of Reap and Sow which mimics/extends the behavior of GatherBy:
SelectEquivalents[x_List,f_:Identity, g_:Identity, h_:(#2&)]:=
Reap[Sow[g[#],{f[#]}]&/@x, _, h][[2]];
This allows me to group lists by any criteria and transform them in the process. The way it works is that a criteria...
Converting JSON data to Java object
... This can be parsed with Gson the following way:
package com.stackoverflow.q1688099;
import java.util.List;
import com.google.gson.Gson;
public class Test {
public static void main(String... args) throws Exception {
String json =
"{"
+ "'title': 'Computing...
Check if a given key already exists in a dictionary
...
get is a bad test if the key is equivalent to "False", like 0 for example. Learned this the hard way :/
– Sebastien
Feb 9 '16 at 21:06
4
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What's the difference between RANK() and DENSE_RANK() functions in oracle?
... Here is a simple test script you can play with to see what happens:
with q as (
select 10 deptno, 'rrr' empname, 10000.00 sal from dual union all
select 11, 'nnn', 20000.00 from dual union all
select 11, 'mmm', 5000.00 from dual union all
select 12, 'kkk', 30000 from dual union all
select 10, 'fff...
Length of string in bash
...
UTF-8 string length
In addition to fedorqui's correct answer, I would like to show the difference between string length and byte length:
myvar='Généralités'
chrlen=${#myvar}
oLang=$LANG oLcAll=$LC_ALL
LANG=C LC_ALL=C
bytlen=${#myvar}
LANG=$oLang LC_ALL=$oLcAll
...
Writing a git post-receive hook to deal with a specific branch
...-cases like this I can't think of though. It could be a good StackOverflow question in its own right.
– pauljz
Mar 29 '16 at 15:22
1
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How does Access-Control-Allow-Origin header work?
...rol-Allow-Origin header opens a door for cross-origin access by specific requesting origins.
For each resource/page that Site B wants to make accessible to Site A, Site B should serve its pages with the response header:
Access-Control-Allow-Origin: http://siteA.com
Modern browsers will not block...
LINQ to SQL Left Outer Join
Is this query equivalent to a LEFT OUTER join?
6 Answers
6
...
php execute a background process
...ed to execute a directory copy upon a user action, but the directories are quite large, so I would like to be able to perform such an action without the user being aware of the time it takes for the copy to complete.
...
How to add Git's branch name to the commit message?
...in the comments) is to copy-paste whatever solution from stackoverflow.com/questions/1593051/… you'd like
– ninjagecko
May 5 '11 at 10:13
...