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如何抓住痛点做出让用户尖叫的产品 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...察觉的情况下，体验到产品的优化改进。比如在微信（iOS版，Android版没有试用，不是很确定，理论上体验是会一致的）中有这样一个功能，当你做了手机屏幕截图的操作后，打开微信的任一聊天窗口，选择“+”号发送其他内容...
Java String - See if a string contains only numbers and not letters
... }
}
}
}
}
}
Updated on Feb 23, 2018
Add two more cases - one using charAt instead of creating extra array and another using IntStream of char codes
Add immediate break if non-digit found for looped test cases
Return false for empty string for looped test...
ipython: print complete history (not just current session)
...n_info(100)
This will print out something like
(100, datetime.datetime(2018, 2, 13, 19, 8, 30, 40691), None, None, '')
This means that the session 100 started on the 13th of Feb 2018 19:08:30.
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Best approach to remove time part of datetime in SQL Server
...CAST to date correctly, but generally it will be a bad idea ...
Edit, Sep 2018, for datetime2
DECLARE @datetime2value datetime2 = '02180912 11:45' --this is deliberately within datetime2, year 0218
DECLARE @datetime2epoch datetime2 = '19000101'
select DATEADD(dd, DATEDIFF(dd, @datetime2epoch, @da...
App Inventor 2 接入百度网盘API · App Inventor 2 中文网
...注意：手机的话，必须将 display=mobile 加上，以展示手机版的授权画面（电脑版极有可能在手机上不能完美展示）。
access_token=[access_token] 有效期：根据文档，有效期大概30天
拿 access_token 的逻辑如下：
3、获取文件列表，...
Named capturing groups in JavaScript regex?
...
ECMAScript 2018 introduces named capturing groups into JavaScript regexes.
Example:
const auth = 'Bearer AUTHORIZATION_TOKEN'
const { groups: { token } } = /Bearer (?<token>[^ $]*)/.exec(auth)
console.log(token) // "Prints...
How do you run multiple programs in parallel from a bash script?
...al). Your command line
will love you for it.
Read: Ole Tange, GNU Parallel 2018 (Ole Tange, 2018).
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WinDbg基础资料（日本語） - IT优秀资料 - 清泛网 - 专注C/C++及内核技术
...gerで取得したCrash Dumpは64bit.
２．上記の環境で、64bit版のWinDbgはインストールできない(出来るとしても、手続きが必要？)
３．取得したCrash Dumpは、32bitの開発機で分析できない。64bitのマシンを用意する必要がある。...
How can you detect the version of a browser?
... on Chromium
Platform.js by bestiejs - 2,250★s - Last updated Oct 30, 2018 - 5.9KB
console.log(platform);
document.write("You are using " + platform.name +
" v" + platform.version +
" on " + platform.os);
<script src="https://cdnjs.cloudflare.com/ajax/...
Maximum size of a element
...
Update for 2018:
As time marches on, canvas limitations have changed. Sadly, what hasn't changed is the fact that browser's still do not provide information on canvas size limitations through the Canvas API.
For those looking to progr...