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How to find the sum of an array of numbers
...s verbose : [1, 2, 3].reduce((a,b)=>a+b)
– Denys Séguret
Apr 29 '15 at 15:35
1
I wonder if th...
搭建高可用mongodb集群（四）—— 分片 - 大数据 & AI - 清泛网 - 专注C/C++及内核技术
...储空间，实际运行的数据库还有硬盘的读写、网络的IO、CPU和内存的瓶颈。在mongodb集群只要设置好了分片规则，通过mongos操作数据库就能自动把对应的数据操作请求转发到对应的分片机器上。在生产环境中分片的片键可要好好设...
What is a callback?
...xplanation only works with a good choreography :)
– Sébastien Sevrin
Jun 12 '15 at 8:22
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Recursively counting files in a Linux directory
...tput as JSON. It can list 34k folders and 51k files in very few seconds. Olé!
– brasofilo
Jan 10 '19 at 5:46
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Include CSS,javascript file in Yii Framework
...t 23 '12 at 10:47
Fabrício Matté
63.9k2222 gold badges115115 silver badges156156 bronze badges
answered Jan 5 '10 at 10:28
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top -c command in linux to filter processes listed based on processname
...ss is like top -c -p 920,1345,1346 wich is fixed.
– Jérôme Gillard
May 23 '16 at 10:34
4
Using ...
How do I use floating-point division in bash?
...units
units 1/3
With compact output:
units --co 1/3
Other sources
Stéphane Chazelas answered a similar question over on Unix.SX.
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CSS strikethrough different color from text?
...r...Firefox and Safari have it = 20% of reach.
– André Werlang
Mar 23 '15 at 15:02
2
As of March...
What is non-blocking or asynchronous I/O in Node.js?
...ng, asynchronous operations is that you can maximize the usage of a single CPU as well as memory.
Synchronous, blocking example
An example of synchronous, blocking operations is how some web servers like ones in Java or PHP handle IO or network requests. If your code reads from a file or the datab...
HTTP vs HTTPS performance
...
The overhead is NOT due to the encryption. On a modern CPU, the encryption required by SSL is trivial.
The overhead is due to the SSL handshakes, which are lengthy and drastically increase the number of round-trips required for a HTTPS session over a HTTP one.
Measure (using a ...