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Dashed line border around UIView

... You can set the border with this pattern using Layer and Bezier path like below examples. Objective-C CAShapeLayer *yourViewBorder = [CAShapeLayer layer]; yourViewBorder.strokeColor = [UIColor blackColor].CGColor; yourViewBorder.fillColor = nil; yourViewBorder.lineDashPattern...
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how to get html content from a webview?

... html code from a webview? I have tried several methods from stackoverflow and google, but can't find an exact method. Please mention an exact way. ...
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What is the difference between Reader and InputStream?

What is the difference between Reader and InputStream? And when to use what? If I can use Reader for reading characters why I will use inputstream, I guess to read objects? ...
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(Mac) -bash: __git_ps1: command not found

I'm trying to change my command promt in terminal. I keep getting the error: 19 Answers ...
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WITH CHECK ADD CONSTRAINT followed by CHECK CONSTRAINT vs. ADD CONSTRAINT

I'm looking at the AdventureWorks sample database for SQL Server 2008, and I see in their creation scripts that they tend to use the following: ...
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How to swap two variables in JavaScript

... Here's a one-liner to swap the values of two variables. Given variables a and b: b = [a, a = b][0]; Demonstration below: var a=1, b=2, output=document.getElementById('output'); output.innerHTML="<p>Original: "+a+", "+b+"</p>"; b = [a, a = b][0]; output.innerHT...
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Map vs Object in JavaScript

I just discovered chromestatus.com and, after losing several hours of my day, found this feature entry : 12 Answers ...
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How to pretty print nested dictionaries?

... U know @Ken's conventional answer is much better than this. Json already handles everything and this can give errors such: UnicodeEncodeError: 'ascii' codec can't encode character u'\xf3' in position 50: ordinal not in range(128) – wonderwhy Aug 27 '14 at 13:2...
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Difference between Destroy and Delete

... ActiveRecord::Persistence.delete Deletes the record in the database and freezes this instance to reflect that no changes should be made (since they can't be persisted). Returns the frozen instance. The row is simply removed with an SQL DELETE statement on the record's primary key, and no...
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How does !!~ (not not tilde/bang bang tilde) alter the result of a 'contains/included' Array method

...returns the index of the item in the array if the first argument is found, and it returns -1 if its not found. This means that if you're looking for a boolean of "is this value in the array?", you can't do a boolean comparison, since -1 is a truthy value, and when $.inArray returns 0 (a falsy value)...