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How do short URLs services work?
...n the database, they find a description (sometimes), your name (sometimes) and the real URL. Then they issue a redirect, which is a HTTP 302 response and the target URL in the header.
This direct redirect is important. If you were to use files or first load HTML and then redirect, the browser would...
Java Hashmap: How to get key from value?
If I have the value "foo" , and a HashMap<String> ftw for which ftw.containsValue("foo") returns true , how can I get the corresponding key? Do I have to loop through the hashmap? What is the best way to do that?
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Matplotlib connect scatterplot points with line - Python
I have two lists, dates and values. I want to plot them using matplotlib. The following creates a scatter plot of my data.
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SVG图像加载扩展 - 第三方扩展集合 · App Inventor 2 中文网
...: 移除不必要的代码和注释
测试兼容性: 确保SVG在不同Android版本上正常显示
文件路径示例
资源文件: "file:///android_asset/icon.svg"
外部存储: "/storage/emulated/0/Documents/icon.svg"
网络URL: "https://example.com/icon.svg"
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Conversion failed when converting date and/or time from character string while inserting datetime
...e many formats supported by SQL Server - see the MSDN Books Online on CAST and CONVERT. Most of those formats are dependent on what settings you have - therefore, these settings might work some times - and sometimes not.
The way to solve this is to use the (slightly adapted) ISO-8601 date format th...
Is there a VB.NET equivalent for C#'s '??' operator?
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To understand the previous comments, look at the edit history.
– Zev Spitz
Jul 11 '18 at 7:20
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CSS3 gradient background set on body doesn't stretch but instead repeats?
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In Chrome and Safari, body { height: 100% } results in the page (but not the gradient) extending down out of the viewport.
– thSoft
Dec 17 '10 at 10:46
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How do I create a right click context menu in Java Swing?
...g a right-click context menu by instantiating a new JMenu on right click and setting its location to that of the mouse's position... Is there a better way?
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How do I count the number of occurrences of a char in a String?
... Although i will not downvote this, it is (a) requiring 3rd party libs and (b) expensive.
– javadba
Jan 23 '14 at 21:24
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Decimal separator comma (',') with numberDecimal inputType in EditText
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A workaround (until Google fix this bug) is to use an EditText with android:inputType="numberDecimal" and android:digits="0123456789.,".
Then add a TextChangedListener to the EditText with the following afterTextChanged:
public void afterTextChanged(Editable s) {
double doubleValue = 0...