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Why do people say that Ruby is slow? [closed]

...ication, multiple application servers, loadbalancing with reverse proxies, HTTP caching, memcache, Ajax, client-side caching, etc. None of this stuff is Ruby. Finally, I can't find much news on Ruby 2.0 - I take it we're a good few years away from that then? Most folks are waiting for Rub...
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difference between foldLeft and reduceLeft in Scala

... To really understand what are you doing with fold/reduce, check this: http://wiki.tcl.tk/17983 very good explanation. once you get the concept of fold, reduce will come together with the answer above: list.tail.foldLeft(list.head)(_) ...
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“Single-page” JS websites and SEO

...html / templates. Most of the info can be found in these two blog posts: http://lostechies.com/derickbailey/2011/09/06/test-driving-backbone-views-with-jquery-templates-the-jasmine-gem-and-jasmine-jquery/ and http://lostechies.com/derickbailey/2011/06/22/rendering-a-rails-partial-as-a-jquery-tem...
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What is the maximum length of a table name in Oracle?

... The schema object naming rules may also be of some use: http://download.oracle.com/docs/cd/B19306_01/server.102/b14200/sql_elements008.htm#sthref723 share | improve this answer ...
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What's the (hidden) cost of Scala's lazy val?

... I've written a post with regard to this issue https://dzone.com/articles/cost-laziness In nutshell, the penalty is so small that in practice you can ignore it. share | ...
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How do I integrate Ajax with Django applications?

...et's break it up into examples: views.py: def hello(request): return HttpResponse('Hello World!') def home(request): return render_to_response('index.html', {'variable': 'world'}) index.html: <h1>Hello {{ variable }}, welcome to my awesome site</h1> urls.py: url(r'^hello...
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使用TokuMX配置Replica Set集群 - 大数据 & AI - 清泛网 - 专注C/C++及内核技术

...细对比请参见《TokuMX vs. MongoDB 性能对比》。 下载地址:http://www.tokutek.com/tokumx-for-mongodb/ TokuMX目前只有Linux版本,下载完成后 解压(tar -zxvf xxxx.tar.gz) 进入bin目录,新建配置文件如:tokumx.conf (文件名随意) 内容如下: lo...
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force Maven to copy dependencies into target/lib

...eful when working with Vaadin). Complete pom example: <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd"> <modelVersion>4.0.0&l...
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Remove border radius from Select tag in bootstrap 3

...from the input. Note: appearance is not supported in IE. Working example: https://jsfiddle.net/gs2q1c7p/ select:not([multiple]) { -webkit-appearance: none; -moz-appearance: none; background-position: right 50%; background-repeat: no-repeat; background-image: url(data:i...
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How to base64 encode image in linux bash / shell

...u readable data back: base64 -d DSC_0251.base64 > DSC_0251.JPG See: http://www.greywyvern.com/code/php/binary2base64 share | improve this answer | follow ...