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Giving a border to an HTML table row,

...an set border properties on a tr element, but according to the CSS 2.1 specification, such properties have no effect in the separated borders model, which tends to be the default in browsers. Ref.: 17.6.1 The separated borders model. (The initial value of border-collapse is separate according to CSS...
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How can I determine if a variable is 'undefined' or 'null'?

How do I determine if variable is undefined or null ? 30 Answers 30 ...
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Scala: Abstract types vs generics

...s. You say, my new Animal class has a type of SuitableFood, which I don't know. So it's an abstract type. You don't give an implementation of the type. Then you have an eat method that eats only SuitableFood. And then in the Cow class I would say, OK, I have a Cow, which extends class Animal, and fo...
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How can I create a UILabel with strikethrough text?

... SWIFT 4 UPDATE CODE let attributeString: NSMutableAttributedString = NSMutableAttributedString(string: "Your Text") attributeString.addAttribute(NSAttributedString.Key.strikethroughStyle, value: 2, range: NSMakeRange(0, a...
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What's the difference between array_merge and array + array?

A fairly simple question. What's the difference between: 9 Answers 9 ...
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Disabling user selection in UIWebView

...nu: - (BOOL)canPerformAction:(SEL)action withSender:(id)sender { if (action == @selector(copy:) || action == @selector(paste:)|| action == @selector(cut:)) { return _copyCutAndPasteEnabled; } return [super canPerformAction:action withSender:sender]; } ...
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What is the dual table in Oracle?

... I think this wikipedia article may help clarify. http://en.wikipedia.org/wiki/DUAL_table The DUAL table is a special one-row table present by default in all Oracle database installations. It is suitable for use in selecting a pseudocolumn such as SYSDATE o...
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How to remove all null elements from a ArrayList or String Array?

... As of 2015, this is the best way (Java 8): tourists.removeIf(Objects::isNull); Note: This code will throw java.lang.UnsupportedOperationException for fixed-size lists (such as created with Arrays.asList), including immutable lists. ...
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How can I convert my device token (NSData) into an NSString?

I am implementing push notifications. I'd like to save my APNS Token as a String. 29 Answers ...
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Execute PowerShell Script from C# with Commandline Arguments

... I still seem to have the problem that if value is something like c:\program files\myprogram, the key is set to c:\program. :( – Mephisztoe Feb 9 '09 at 10:48 ...