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What is Haskell used for in the real world? [closed]

... to be able to easily roll back every change if some object deep in the call hierarchy decided the message is flawed? How about having a history of different states? Many housekeeping tasks made for you: deconstructing data structures (PatternMatching), storing variable bindings (LexicalScop...
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ExpandableListView - hide indicator for groups with no children

... Try this >>> for all items getExpandableListView().setGroupIndicator(null); In xml android:groupIndicator="@null" share | improve this...
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Set environment variables on Mac OS X Lion

...ble you set in your .bash_profile will only affect your bash shells. Generally I only set variables in my .bash_profile file and don't change the .plist file (or launchd file on Mavericks). Most OS X windowed applications don't need any custom environment. Only when an application actually needs a ...
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Host 'xxx.xx.xxx.xxx' is not allowed to connect to this MySQL server

...CREATE USER 'monty'@'localhost' IDENTIFIED BY 'some_pass'; mysql> GRANT ALL PRIVILEGES ON *.* TO 'monty'@'localhost' -> WITH GRANT OPTION; mysql> CREATE USER 'monty'@'%' IDENTIFIED BY 'some_pass'; mysql> GRANT ALL PRIVILEGES ON *.* TO 'monty'@'%' -> WITH GRANT OPTION; ...
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Bash command to sum a column of numbers [duplicate]

...mn of numbers. I just want a quick one liner that will do something essentially like this: 10 Answers ...
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How to draw border around a UILabel?

...ebug the text placement and to see the placement and how big the label actually is. 9 Answers ...
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Toggle Checkboxes on/off

... You can write: $(document).ready(function() { $("#select-all-teammembers").click(function() { var checkBoxes = $("input[name=recipients\\[\\]]"); checkBoxes.prop("checked", !checkBoxes.prop("checked")); }); }); Before jQuery 1.6, when we only ...
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Add single element to array in numpy

...swered Sep 7 '11 at 11:15 reader_1000reader_1000 2,2831515 silver badges1414 bronze badges ...
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Regular Expression to match only alphabetic characters

...z]+$/ to match an input string of ASCII alphabets. [A-Za-z] will match all the alphabets (both lowercase and uppercase). ^ and $ will make sure that nothing but these alphabets will be matched. Code: preg_match('/^[A-Z]+$/i', "abcAbc^Xyz", $m); var_dump($m); Output: array(0) { } Test cas...
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how to ignore namespaces with XPath

...re sometimes client-generated i.e. unknown to me. Then i am left with basically three choices : 5 Answers ...