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How do I clear the terminal screen in Haskell?
How can I clear a terminal screen after my user has selected an option from my application's menu?
8 Answers
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Dropping Unique constraint from MySQL table
...AINT unq_tab_id UNIQUE(id));
-- checking constraint name if autogenerated
SELECT * FROM INFORMATION_SCHEMA.TABLE_CONSTRAINTS WHERE TABLE_NAME = 'tab';
-- dropping constraint
ALTER TABLE tab DROP CONSTRAINT unq_tab_id;
db<>fiddle demo
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How to integrate nodeJS + Socket.IO and PHP?
... and making the code more inline with the use of node. Now, PHP can simply select the information from the database.
– blackmambo
Nov 5 '13 at 4:13
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Intellij idea subversion checkout error: `Cannot run program “svn”`
...command line client is the right answer here. Note that on windows default selections for installation of TortoisSVN do not include the command line client.
– dbrin
Oct 3 '14 at 20:55
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How to access property of anonymous type in C#?
...GetType();
var properties = type?.GetProperties()
?.Select(n => n.Name)
?.ToDictionary(k => k, k => type.GetProperty(k).GetValue(obj, null));
return properties;
}
// converts object list into list of properties that meet the filterCrite...
How to remove unused imports in Intellij IDEA on commit?
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In IntelliJ, select the project you want to optimize imports on, go to Code menu and choose Optimize imports and a small Optimize Imports popup window will appear. On the popup window you need to click on Run button. Or alternatively, on ...
Is there a jQuery unfocus method?
...fore the window loses focus so that when I come back, the text area is not selected by default. Doesn't seem to work :(
– Alec Smart
May 13 '09 at 10:55
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Is there any difference between “!=” and “” in Oracle Sql?
... first-class type in SQL (which is different from PL/SQL). I. e. you can't SELECT 1 = 1 FROM dual like in some other systems. So booleans have their own set of operators valid only in logical contexts (WHERE or HAVING or similar clauses). NOT is the only boolean negation operator in Oracle's SQL (AF...
How can I remove all objects but one from the workspace in R?
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Likewise, click the Name box, which selects all the files, and then deselect all the files you want to keep.
– Stephen
Dec 27 '17 at 15:18
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How to create a date object from string in javascript [duplicate]
...1970. Whereas Dogbert's answer will return a JS Date object, with a robust selection of methods available from __proto__. Demo in jsFiddle
– KyleMit
Apr 11 '17 at 19:19
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