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Remove new lines from string and replace with one empty space

...ce('/\s\s+/', ' ', $string)); Multiple spaces and newlines are replaced with a single space. Edit: As others have pointed out, this solution has issues matching single newlines in between words. This is not present in the example, but one can easily see how that situation could occur. An alternat...
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The point of test %eax %eax [duplicate]

... CMP subtracts the operands and sets the flags. Namely, it sets the zero flag if the difference is zero (operands are equal). TEST sets the zero flag, ZF, when the result of the AND operation is zero. If two operands are equal, their bitwise AND is zero when both are zero. TEST a...
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How do I flush the cin buffer?

...follow | edited Jan 15 '16 at 22:30 Arslan Ali 15.7k77 gold badges4545 silver badges6363 bronze badges ...
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How to combine paths in Java?

...er using java.nio.file.Path; Path.resolve can be used to combine one path with another, or with a string. The Paths helper class is useful too. For example: Path path = Paths.get("foo", "bar", "baz.txt"); If you need to cater for pre-Java-7 environments, you can use java.io.File, like this: File...
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CSS background image to fit width, height should auto-scale in proportion

... There is a CSS3 property for this, namely background-size (compatibility check). While one can set length values, it's usually used with the special values contain and cover. In your specific case, you should use cover: body { background-image: url(images/background.svg); backgroun...
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Can a program depend on a library during compilation but not runtime?

...e classpath on runtime (e.g. in wars they will be copied to WEB-INF/lib). It is not, however, strictly required; for instance, we may compile against a certain API, making it a compile-time dependency, but then at runtime include an implementation that also includes the API. There may be fringe ca...
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Java - sending HTTP parameters via POST method easily

I am successfully using this code to send HTTP requests with some parameters via GET method 17 Answers ...
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Media query to detect if device is touchscreen

... I would suggest using modernizr and using its media query features. if (Modernizr.touch){ // bind to touchstart, touchmove, etc and watch `event.streamId` } else { // bind to normal click, mousemove, etc } However, using CSS, there are pseudo class like, fo...
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What are the differences between a clustered and a non-clustered index?

...red index Both types of index will improve performance when select data with fields that use the index but will slow down update and insert operations. Because of the slower insert and update clustered indexes should be set on a field that is normally incremental ie Id or Timestamp. SQL Server w...
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Warning: mysql_connect(): [2002] No such file or directory (trying to connect via unix:///tmp/mysql.

I'm trying to connect to my MySQL DB with the Terminal on my Apple (With PHP). 17 Answers ...