6 calls to NestedArray::keyExists()

Config::hasOverrides in core/lib/Drupal/Core/Config/Config.php
Determines if overrides are applied to a key for this configuration object.
FormBuilder::handleInputElement in core/lib/Drupal/Core/Form/FormBuilder.php
Adds the #name and #value properties of an input element before rendering.
FormValidator::handleErrorsWithLimitedValidation in core/lib/Drupal/Core/Form/FormValidator.php
Handles validation errors for forms with limited validation.
NestedArrayTest::testKeyExists in core/tests/Drupal/Tests/Component/Utility/NestedArrayTest.php
Tests existence of array key.
Row::hasDestinationProperty in core/modules/migrate/src/Row.php
Tests if destination property exists.
Row::hasSourceProperty in core/modules/migrate/src/Row.php
Determines whether a source has a property.

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