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2 results for "nsIDataType":
nsIContentPrefService
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Interface
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nsIContentPrefService
the result may be null (
nsidatatype
:vtype_empty) if the preference's value is either null, or undefined (
nsidatatype
:vtype_void) if there is no saved preference by the specified name.
nsIContentPrefService2
Mozilla
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Tech
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XPCOM
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Reference
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Interface
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nsIContentPrefService2
if the preference is known not to exist, the value attribute of the returned object will be undefined (
nsidatatype
.vtype_void()).