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iOS: Modal ViewController with transparent background

...ing a sub view. Here is a very good discussion. Look at the comments specifically. Not only the answer. Modal View If I were you I wouldn't do it. I would add a sub view and do it. It seems to give me a better control over things. EDIT: As mentioned by Paul Linsay, since iOS 8 all that's need...
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A good solution for await in try/catch/finally?

...move the logic outside of the catch block and rethrow the exception after, if needed, by using ExceptionDispatchInfo. static async Task f() { ExceptionDispatchInfo capturedException = null; try { await TaskThatFails(); } catch (MyException ex) { capturedExcep...
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How to match “anything up until this sequence of characters” in a regular expression?

... You didn't specify which flavor of regex you're using, but this will work in any of the most popular ones that can be considered "complete". /.+?(?=abc)/ How it works The .+? part is the un-greedy version of .+ (one or more ...
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Resize image proportionally with MaxHeight and MaxWidth constraints

... I just thinking about a case, i don't sure if it possible or not that after multiply with ratio the width Or height might still larger than max width or max height. – Sarawut Positwinyu Jun 28 '11 at 10:37 ...
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Retrieving a List from a java.util.stream.Stream in Java 8

...is that the code as it stands (forEach(targetLongList::add)) would be racy if the stream was parallel. Even then, it will not achieve the effect intended, as forEach is explicitly nondeterministic—even in a sequential stream the order of element processing is not guaranteed. You would have to use ...
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Converting unix timestamp string to readable date

... datetime module: from datetime import datetime ts = int("1284101485") # if you encounter a "year is out of range" error the timestamp # may be in milliseconds, try `ts /= 1000` in that case print(datetime.utcfromtimestamp(ts).strftime('%Y-%m-%d %H:%M:%S')) ...
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Declaring Multiple Variables in JavaScript

... If you're writing code that you expect to minify or pack later, the second way allows compressors (like the YUI Compressor) to give you a more minified version. If size is a consideration, then I would suggest following as m...
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如何选择机器学习算法 - 大数据 & AI - 清泛网移动版 - 专注IT技能提升

如何选择机器学习算法Choosing-a-Machine-Learning-Classifier机器学习 算法如何针对某个分类问题决定使用何种机器学习算法? 当然,如果你真心在乎准确率,最好的途径就是测试一大堆各式各样的算法(同时确保在每个算法上也测试...
https://www.tsingfun.com/it/bi... 

如何选择机器学习算法 - 大数据 & AI - 清泛网移动版 - 专注IT技能提升

如何选择机器学习算法Choosing-a-Machine-Learning-Classifier机器学习 算法如何针对某个分类问题决定使用何种机器学习算法? 当然,如果你真心在乎准确率,最好的途径就是测试一大堆各式各样的算法(同时确保在每个算法上也测试...
https://www.tsingfun.com/it/bi... 

如何选择机器学习算法 - 大数据 & AI - 清泛网移动版 - 专注IT技能提升

如何选择机器学习算法Choosing-a-Machine-Learning-Classifier机器学习 算法如何针对某个分类问题决定使用何种机器学习算法? 当然,如果你真心在乎准确率,最好的途径就是测试一大堆各式各样的算法(同时确保在每个算法上也测试...