6 methods override ExtensionList::getInstalledExtensionNames()
- DatabaseDriverList::getInstalledExtensionNames in core/
lib/ Drupal/ Core/ Extension/ DatabaseDriverList.php  - Returns a list of machine names of installed extensions.
 - ModuleExtensionList::getInstalledExtensionNames in core/
lib/ Drupal/ Core/ Extension/ ModuleExtensionList.php  - Returns a list of machine names of installed extensions.
 - ProfileExtensionList::getInstalledExtensionNames in core/
lib/ Drupal/ Core/ Extension/ ProfileExtensionList.php  - Returns a list of machine names of installed extensions.
 - TestExtension::getInstalledExtensionNames in core/
tests/ Drupal/ Tests/ Core/ Extension/ ExtensionListTest.php  - Returns a list of machine names of installed extensions.
 - ThemeEngineExtensionList::getInstalledExtensionNames in core/
lib/ Drupal/ Core/ Extension/ ThemeEngineExtensionList.php  - Returns a list of machine names of installed extensions.
 - ThemeExtensionList::getInstalledExtensionNames in core/
lib/ Drupal/ Core/ Extension/ ThemeExtensionList.php  - Returns a list of machine names of installed extensions.
 
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