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What are the differences between a multidimensional array and an array of arrays in C#?
...es++)
{
var timer = new Stopwatch();
timer.Start();
var jagged = new int[dim][][];
for(var i = 0; i < dim; i++)
{
jagged[i] = new int[dim][];
for(var j = 0; j < dim; j++)
{
...
Node.js get file extension
...top at (without including that character). Also, substr() accepts negative start positions to be used as an offset from the end of the string while substring() does not.
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Fluent and Query Expression — Is there any benefit(s) of one over other?
... extension methods you can write your own.
I have found that every time I start writing a LINQ statement using the query syntax I end up having to put it in parenthesis and fall back to using fluent LINQ extension methods. Query syntax just doesn't have enough features to use by itself.
...
Maven artifact and groupId naming
...ntions on groupId, artifactId, and version which proposes the groupId must start with a reversed domain name you control.
com means this project belongs to a company, and org means this project belongs to a social organization. These are alright, but for those strange domain like xxx.tv, xxx.uk, xx...
搭建高可用mongodb集群（一）——配置mongodb - 大数据 & AI - 清泛网 - 专...
...–master
输出日志如下，成功！
[initandlisten] MongoDB starting : pid=18285 port=27017 dbpath=/data/mongodbtest/master master=1
#日志显示主节点参数
[initandlisten] options: { dbpath: “/data/mongodbtest/master”, master: true }
……..
[initandlisten] waiting for ...
Generating an MD5 checksum of a file
...lock, checksum)
return checksum & 0xffffffff
Note that this must start off with the empty string, as Adler sums do indeed differ when starting from zero versus their sum for "", which is 1 -- CRC can start with 0 instead. The AND-ing is needed to make it a 32-bit unsigned integer, which e...
Android “Only the original thread that created a view hierarchy can touch its views.”
...he block. Include only the smallest amount of code possible, otherwise you start to defeat the purpose of the background thread.
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What is the difference between Google App Engine and Google Compute Engine?
...ediately, while a call to App Engine may require a new instance - and cold-starting a new instance may take a few seconds or longer (depending on runtime and your code).
This makes Cloud Functions ideal for (a) rare calls - no need to keep an instance live just in case something happens, (b) rapidl...
In which order should floats be added to get the most precise result?
...lue to the total that best matches its magnitude, and when a running total starts to get too big for its magnitude, add it into the next total up and start a new one. Taken to its logical extreme, this process is equivalent to performing the sum in an arbitrary-precision type (so you'd do that). But...
How do you properly determine the current script directory in Python?
...e debugger context. Also exec() is supposed to be considerably faster than starting a new process.
– sorin
Nov 22 '11 at 11:52
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