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How to get first element in a list of tuples?
...element tuples. However, you can easily create a list of 1 element tuples by just replacing seq[0] with (seq[0],).
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jQuery if checkbox is checked
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Code confirmed by jQuery doc, "the cross-browser-compatible way to determine if a checkbox is checked is to use the property: if ( elem.checked ) or if ( $( elem ).prop( "checked" ) ) or if ( $( elem ).is( ":checked" ) ) ". see api.jquery.c...
How to export a Vagrant virtual machine to transfer it
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So is the way recommended by Hashicorp also 'dirty'? i.e. package the box and upload it to the atlas server? I'm not sure if the 'clean' way will actually replicate the exact environment, which I thought was the whole purpose of vagrant....
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Inserting multiple rows in a single SQL query? [duplicate]
...ple lists of column values, each enclosed within parentheses and separated by commas.
Example:
INSERT INTO tbl_name (a,b,c) VALUES(1,2,3),(4,5,6),(7,8,9);
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What is Data Transfer Object?
...m one subsystem of an application to another.
DTOs are most commonly used by the Services layer in an N-Tier application to transfer data between itself and the UI layer. The main benefit here is that it reduces the amount of data that needs to be sent across the wire in distributed applications. T...
How to check if a string is a valid hex color representation?
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By definition this is correct, but codes with a length of 3 are valid for browser interpretation, too. color: #f00; will be interpreted as red (#ff0000) aswell.
– Smamatti
Nov 6 '11 at 1...
DBMS_OUTPUT.PUT_LINE not printing
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What is "it" in the statement "it just says the procedure is completed"?
By default, most tools do not configure a buffer for dbms_output to write to and do not attempt to read from that buffer after code executes. Most tools, on the other hand, have the ability to do so. In SQL*Plus, you'd need...
What's the absurd function in Data.Void useful for?
...llowing signature, where Void is the logically uninhabited type exported by that package:
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Add & delete view from Layout
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@schwiz how can we reset the view id's in this case.My problem is even after my activity finishes whenever the next view gets added the view id gets incremented.I want the view id to default to 1 when i get back to this activity again.
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How to name factory like methods?
...version methods.
of — A concise alternative to valueOf, popularized by EnumSet (Item 32).
getInstance — Returns an instance that is described by the parameters
but cannot be said to have the same value. In the case of a singleton,
getInstance takes no parameters and returns the sol...