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What is the “right” way to iterate through an array in Ruby?

PHP, for all its warts, is pretty good on this count. There's no difference between an array and a hash (maybe I'm naive, but this seems obviously right to me), and to iterate through either you just do ...
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Recursion or Iteration?

...ed. I'll dig up some articles and examples for you too. Link 1: Haskel vs PHP (Recursion vs Iteration) Here is an example where the programmer had to process a large data set using PHP. He shows how easy it would have been to deal with in Haskel using recursion, but since PHP had no easy way to a...
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One-liner to recursively list directories in Ruby?

... In PHP or other languages to get the content of a directory and all its subdirectories, you have to write some lines of code, but in Ruby it takes 2 lines: require 'find' Find.find('./') do |f| p f end this will print the con...
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【BLE技术内幕】BLE技术揭秘 - 创客硬件开发 - 清泛IT论坛,有思想、有深度

...用send_LL(0x53,2402M)(注:2402M为信道频率)。这里还有一个问题,设备B怎么知道这个数据包是发给自己的还是其他人的,为此BLE引入access address概念,用来指明接收者身份,其中,0x8E89BED6这个access address比较特殊,它表示要发给周...
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创业公司倒闭大潮 教你正确烧钱速度? - 资讯 - 清泛网 - 专注C/C++及内核技术

...:月净现金消耗量只有10万,却希望融600-800万。我第一个问题就会问: “老兄,请问如果你每月只烧10万,到底为什么你要融这么多钱?” 不管他们背地里在想什么,我最后听到的答案通常是:因为我办得到。 但“我办得到...
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What text editor is available in Heroku bash shell? [closed]

...ate heroku-vim so you'll need to do it yourself. In my example I'm running php: ~ $ cat Procfile web: vendor/bin/heroku-php-apache2 You can start this command yourself! ~ $ vendor/bin/heroku-php-apache2 2>/dev/null & [2] 845 It's now running in the background! curl your website Dynos ...
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difference between variables inside and outside of __init__()

...s if you don't create them in __init__(). – too much php Oct 8 '09 at 11:43 3 @too much php: All ...
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App Launcher 应用启动器扩展:用于启动其他应用程序的强大工具,支持独立...

... 2.2 (2021-05-12) 解决了Android 10设备和小米设备的问题(见说明)添加属性:CanDrawOverlays、CanLaunchFromBackground、CurrentLanguage、IsXiaomi、Manufacturer、PermissionDelay、VersionName、VersionSDK添加方法:CheckBackgroundLaunchPermission、LaunchAppF...
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Composer: how can I install another dependency without updating old ones?

...sues with Laravel and mcrypt: check that it's properly enabled in your CLI php.ini. If php -m doesn't list mcrypt then it's missing. Important: Don't forget to specify new/package when using composer update! Omitting that argument will cause all dependencies, as well as composer.lock, to be updated...
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How many concurrent AJAX (XmlHttpRequest) requests are allowed in popular browsers?

...njoy it!!! Just because I have had problems with my hosting provider <?php /* Author: Luis Siquot Purpose: Check ajax performance and errors License: GPL site5: Please don't drop json requests (nor delay)!!!! */ $r = (int)$_GET['r']; $w = (int)$_GET['w']; if($r) { sleep($w); ech...