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What is the most efficient way to concatenate N arrays?

...w array that concatenates two existing arrays, it appears concat() is generally faster. For the case of concatenating an array onto an existing array in place, push() is the way to go. I updated my answer. – Tim Down Apr 22 '12 at 22:12 ...
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How to use ng-repeat for dictionaries in AngularJs?

...very similar to ng-repeat directive. The difference is that is will repeat all the HTML elements (including the tag it's defined on) up to the ending HTML tag where ng-repeat-end is placed (including the tag with ng-repeat-end). Sample code (from a controller): // ... $scope.users = {}; $scope.us...
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How to present popover properly in iOS 8

... you talk to the view controller inside of it to set the content size, by calling the property preferredContentSize share | improve this answer | follow | ...
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Why shouldn't I use “Hungarian Notation”?

...me with its kind (using Joel's example: safe string or unsafe string), so called Apps Hungarian has its uses and is still valuable. share edited Sep 26 '08 at 19:56 ...
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scala vs java, performance and memory? [closed]

...y easy to use enormous amounts of memory without realizing it. This is usually very powerful, but occasionally can be annoying. For example, suppose you have an array of strings (called array), and a map from those strings to files (called mapping). Suppose you want to get all files that are in t...
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Sort a text file by line length including spaces

...ou change one field. I guess it's not crazy behaviour. It has this: "Finally, there are times when it is convenient to force awk to rebuild the entire record, using the current value of the fields and OFS. To do this, use the seemingly innocuous assignment:" $1 = $1 # force record to be recon...
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How do I read an attribute on a class at runtime?

...d be further generalized by extending MemberInfo, a base class of Type and all - or at least most - of a Type's members. Doing so would open this up to allow reading attributes from Properties, Fields, and even Events. – M.Babcock Aug 12 '14 at 1:54 ...
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Print function log /stack trace for entire program using firebug

Firebug has the ability to log calls to a particular function name. I'm looking for a bug that sometimes stops a page from rendering, but doesn't cause any errors or warnings. The bug only appears about half the time. So how do I get a list of all the function calls for the entire program, or som...
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JsonMappingException: No suitable constructor found for type [simple type, class ]: can not instanti

... So, finally I realized what the problem is. It is not a Jackson configuration issue as I doubted. Actually the problem was in ApplesDO Class: public class ApplesDO { private String apple; public String getApple() { ...
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How to implement a tree data-structure in Java? [closed]

...object. It is fairly easy to implement simple trees to do what you need. All you need to add are methods for add to, removing from, traversing, and constructors. The Node is the basic building block of the Tree. share ...