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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