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Check if string contains only digits
...ce. Several jQuery competitors that existed then, before jQuery had yet to win out, all practiced prototype extensions.
– balupton
Sep 7 '19 at 17:38
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Converting Integer to Long
...d is. For that, and to avoid some code duplication I have created the following method:
15 Answers
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用户界面（UI）组件 · App Inventor 2 中文网
...译或安装应用程序失败。
构建服务器将为 Android 设备生成标准尺寸的图像。
平台
获取运行应用程序的底层平台的名称。目前，这是文本Android，将来可能会支持其他平台。
平台版本
获取运行应用程序的平台的版本...
Is there a JavaScript MVC (micro-)framework? [closed]
...Script and uses CoffeeScript's style of classes — not that that's a huge win, but it's kinda nice.
– a paid nerd
Nov 11 '11 at 21:53
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How to install 2 Anacondas (Python 2 and 3) on Mac OS
... Then how can I switch between python2 and python3? And BTW, I'm on win7.
– cqcn1991
Jun 12 '15 at 10:27
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How do I remove/delete a virtualenv?
I created an environment with the following command: virtualenv venv --distribute
16 Answers
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Detecting touch screen devices with Javascript
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In order to also detect IE 10 touch I'm using: (window.navigator.msMaxTouchPoints || ('ontouchstart' in document.documentElement));
– Alexander Kellett
Mar 8 '13 at 10:45
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WebSockets protocol vs HTTP
...However, it's not real-time data from the server where you get the biggest win. You can get almost as good server->client latency using HTTP streaming/long-held connections. And with long-held requests servers can effectively send whenever they have data because the client has already sent the re...
boost::flat_map and its performance compared to map and unordered_map
...overhead. The problem is that when comparing to another container B, A may win over B for small types, and lose for larger types.
Point 3 is the same as point 2, except it multiplies the cost by some weighting factor.
Point 4 is a question of big O mixed with cache issues. Some bad-complexity cont...
AttributeError: 'module' object has no attribute 'urlopen'
...req = urllib.request.Request(siteurl, headers={'User-Agent': 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/80.0.3987.100 Safari/537.36'})
pageHTML = urllib.request.urlopen(req).read()
I hope your problem resolved.
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