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Rails create or update magic?
...not, a block will be passed down with the record object as an argument, in order to do the update.
– sameers
Sep 23 '14 at 20:48
3
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Transposing a 2D-array in JavaScript
...p calls a provided callback function once for each element in an array, in order, and constructs a new array from the results. callback is invoked only for indexes of the array which have assigned values; it is not invoked for indexes which have been deleted or which have never been assigned values....
Replace String in all files in Eclipse
... hotkey would be using the Alt method: Tap Alt, then A, then F.
Efficient Order of Operations:
Ctrl+C the text you want to do the replacing (if available)
Highlight the text you want to be replaced
Tap ALT, then A, then F. Brings you to File Search. The selection from (2) will auto-fill the searc...
How do I list the symbols in a .so file
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Try adding -l to the nm flags in order to get the source of each symbol. If the library is compiled with debugging info (gcc -g) this should be the source file and line number. As Konrad said, the object file / static library is probably unknown at this po...
java.lang.OutOfMemoryError: Java heap space in Maven
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In order to resolve java.lang.OutOfMemoryError: Java heap space in Maven, try to configure below configuration in pom
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-surefire-p...
Prevent linebreak after
...ffected by margin-top, margin-bottom, padding-top, padding-bottom, height, etc.
float:left; keeps the div as a block-level element. It will still take up space as if it were a block, however the width will be fitted to the content (assuming width:auto;). It can require a clear:left; for certain eff...
Where does System.Diagnostics.Debug.Write output appear?
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As others have pointed out, listeners have to be registered in order to read these streams. Also note that Debug.Write will only function if the DEBUG build flag is set, while Trace.Write will only function if the TRACE build flag is set.
Setting the DEBUG and/or TRACE flags is easily d...
Writing a pandas DataFrame to CSV file
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How to delete a workspace in Eclipse?
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Table row and column number in jQuery
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