Function toLegacyClass

packages/runtime-dom/src/components/Transition.ts:158–158

(cls: string)

  let legacyLeaveFromClass: string
  if (__COMPAT__ && legacyClassEnabled) {
    const toLegacyClass = (cls: string) => cls.replace(/-from$/, '')
    if (!rawProps.enterFromClass) {
      legacyEnterFromClass = toLegacyClass(enterFromClass)
    }