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Convert a series of parent-child relationships into a hierarchical tree?
...ierarchical $tree array, the final code looks like the following:
$root = new TreeNode($tree);
$it = new TreeNodesIterator(array($root));
$rit = new RecursiveListIterator($it);
$decor = new ListDecorator($rit);
$rit->addDecorator($decor);
foreach($rit as $item)
{
$inset = $decor->inset(1...
搭建高可用mongodb集群（二）—— 副本集 - 大数据 & AI - 清泛网 - 专注C/...
...plog of size: 990MB...
Sun Dec 29 20:26:13.849 [FileAllocator] allocating new datafile /data/mongodbtest/replset/data/local.1, filling with zeroes...
Sun Dec 29 20:26:13.862 [FileAllocator] done allocating datafile /data/mongodbtest/replset/data/local.1, size: 1024MB, took 0.012 secs
Sun Dec 29 ...
Bootstrap 3 Slide in Menu / Navbar on Mobile [closed]
I am building a browser-based mobile app and I've decided to use Bootstrap 3 as the css framework for the design. Bootstrap 3 comes with a great "responsive" feature in the navigation bar where it collapses automatically if it detects a specific "break point" regarding the resolution of the browser....
What is the syntax for an inner join in LINQ to SQL?
...om t1 in db.Table1
join t2 in db.Table2 on t1.field equals t2.field
select new { t1.field2, t2.field3}
It would be nice to have sensible names and fields for your tables for a better example. :)
Update
I think for your query this might be more appropriate:
var dealercontacts = from contact in D...
Simulate low network connectivity for Android [closed]
... For simulating latency over HTTP, use ResponseCache.setDefault(new CacheResponse(){...}) and put a Thread.sleep(200) call in there. This has the advantage of being programatically controlled (i.e. only just in one activity) and not affecting other processes. However, for a more realistic...
External VS2013 build error “error MSB4019: The imported project was not found”
...
OLD, VS2012
C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
NEW, VS2013
C:\Program Files (x86)\MSBuild\12.0\bin\msbuild.exe
Newer, VS2015
C:\Program Files (x86)\MSBuild\14.0\Bin\msbuild.exe
Newer still, VS2017 (not fully testing but discovered - they've moved things around a bit...
Nesting await in Parallel.ForEach
...etwork, you can Post() each id to the TransformBlock.
In code:
var ids = new List<string> { "1", "2", "3", "4", "5", "6", "7", "8", "9", "10" };
var getCustomerBlock = new TransformBlock<string, Customer>(
async i =>
{
ICustomerRepo repo = new CustomerRepo();
...
Understanding dict.copy() - shallow or deep?
... the content of the dictionary is not copied by value, but just creating a new reference.
>>> a = {1: [1,2,3]}
>>> b = a.copy()
>>> a, b
({1: [1, 2, 3]}, {1: [1, 2, 3]})
>>> a[1].append(4)
>>> a, b
({1: [1, 2, 3, 4]}, {1: [1, 2, 3, 4]})
In contrast, a ...
Finding all cycles in a directed graph
...lues to keep track of whether you visited a node before. If you run out of new nodes to go to (without hitting a node you have already been), then just backtrack and try a different branch.
The DFS is easy to implement if you have an adjacency list to represent the graph. For example adj[A] = {B,C}...
Convert timestamp to readable date/time PHP
...
$timestamp = 1465298940;
$datetimeFormat = 'Y-m-d H:i:s';
$date = new \DateTime();
// If you must have use time zones
// $date = new \DateTime('now', new \DateTimeZone('Europe/Helsinki'));
$date->setTimestamp($timestamp);
echo $date->format($datetimeFormat);
result: 2016-06-07 14...