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MySQL indexes - what are the best practices?
...t them. Generally I put an index on any fields that I will be searching or selecting using a WHERE clause but sometimes it doesn't seem so black and white.
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How to select .NET 4.5.2 as a target framework in Visual Studio
... },
onDemand: true,
discardSelector: ".discard-answer"
,immediatelyShowMarkdownHelp:true,enableSnippets:true
});
}
});
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SQL standard to escape column names?
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For MySQL, use back ticks `.
For instance:
SELECT `column`, `column2` FROM `table`
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How to attach javadoc or sources to jars in libs folder?
...-open the Eclipse project! Optionally, refresh the project by pressing F5.
Select an object of the linked library in the source code.
Open the Javadoc view in Eclipse to check the documentation (see screenshot).
Open the source code declaration (default shortcut: F3) of the selected object.
Exam...
Razor MVC Populating Javascript array with Model Array
....SerializeObject(ViewBag.ComputeOfferings))),
desktopGrpComputeOfferingSelected: ko.observable(),
};
ko.applyBindings(desktopGrpViewModel);
...
<select name="ComputeOffering" class="form-control valid" id="ComputeOffering" data-val="true"
data-bind="options: availableComputeOffering,
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How to delete a file from SD card?
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File file = new File(selectedFilePath);
boolean deleted = file.delete();
where selectedFilePath is the path of the file you want to delete - for example:
/sdcard/YourCustomDirectory/ExampleFile.mp3
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How to create a date and time picker in Android? [closed]
.... This Date object contains
// the date and time that the user has selected.
}
@Override
public void onDateTimeCancel()
{
// Overriding onDateTimeCancel() is optional.
}
};
Then you create and show the dialog:
new SlideDateTimePicker.Builder(getSupportFragment...
How to get the date from jQuery UI datepicker
...tepicker_id').datepicker('getDate');
if (jsDate !== null) { // if any date selected in datepicker
jsDate instanceof Date; // -> true
jsDate.getDate();
jsDate.getMonth();
jsDate.getFullYear();
}
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Looking for jQuery find(..) method that includes the current node
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For jQuery 1.8 and up, you can use .addBack(). It takes a selector so you don't need to filter the result:
object.find('selector').addBack('selector')
Prior to jQuery 1.8 you were stuck with .andSelf(), (now deprecated and removed) which then needed filtering:
object.find('sele...
How to use range-based for() loop with std::map?
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If copy assignment operator of foo and bar is cheap (eg. int, char, pointer etc), you can do the following:
foo f; bar b;
BOOST_FOREACH(boost::tie(f,b),testing)
{
cout << "Foo is " << f << " Bar is " << b;
}
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