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How do I wait for an asynchronously dispatched block to finish?
... expose real behavior to the rest of the app than hide it behind a false façade.
Instead, use NSNotificationCenter, define a custom delegate protocol with callbacks for your class. And if you don't like mucking with delegate callbacks all over, wrap them into a concrete proxy class that implemen...
区块链技术到底是什么鬼，为何被疯炒？ - 资讯 - 清泛网 - 专注C/C++及内核技术
...整个网络的健康运作。去信任化：任意两个节点之间建立连接不需要信任彼此的身份，双方之间进行数据交换无需互相信任的基础。由于网络中的所有节点都可以扮演“监督者”的身份，因此不用担心欺诈的问题。可扩展：区块...
How do you find the row count for all your tables in Postgres
...ered Feb 25 '15 at 1:37
Daniel VéritéDaniel Vérité
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How to read values from properties file?
...red Aug 21 '13 at 7:29
Michael TécourtMichael Técourt
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Java Replacing multiple different substring in a string at once (or in the most efficient way)
...s a bit more complexity that becomes an implementation detail by using a façade with the same method signature:
private String testBorAhoCorasick(
final String text, final Map<String, String> definitions ) {
// Create a buffer sufficiently large that re-allocations are minimized.
...
WhatsApp如何成为销售钻戒的店面？ - 资讯 - 清泛网 - 专注C/C++及内核技术
...于在WhatsApp上与顾客交流，并将其跟三位销售人员的PC相连接。现在，无论他们何时与顾客交流，他们都能让办公室里的所有人知道，他们正在用WhatsApp。不要上线。
皮瑞安科夫表示，在顾客中，这种方式远比Rare Pink网站上的“...
Remove multiple attributes with jQuery's removeAttr
...wered Dec 5 '12 at 14:21
Denys SéguretDenys Séguret
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Why does PHP consider 0 to be equal to a string?
... answered Mar 29 '13 at 14:47
Sébastien RenauldSébastien Renauld
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How to create a cron job using Bash automatically without the interactive editor?
...o "00 09 * * 1-5 echo hello") | crontab - works.
– Stéphane Bruckert
Nov 4 '15 at 13:39
11
This ...
Wi-Fi 是什么的缩写 - 程序人生、谈天论地 - 清泛IT论坛，有思想、有深度
...You Know?Wi-Fi 的标准写法是大写“W”和“F”，中间用“-”连接。Interbrand 除了给 Wi-Fi 起名，他们还帮微软家的搜索引擎起了个响亮的名字——Bing。关于 Interbrand 还搞出了什么名堂，可以点这里看他们长长的案例列表。Interbrand 当...