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javascript css html this call nested-objects objects bind ecmascript6 prototype-property apply factory-functions constructor-functions bracket-notation john-smilga property-lookup constructor-property

javascript es6 object notation value es6-javascript local-storage key fundamentals fetch-api dot-notation array-methods session-storage destructuring ternary-operator bracket-notation

nested-objects pop arrays objects push hacktoberfest hasownproperty spread-operator indexof for-loop key-value-pairs bracket-notation for-in-loop splice-remove splice-add slice-copy spread-copy spread-combine complex-array delete-keys