Function _setValue

src/logic/createFormControl.ts:881–945

(
    name: TFieldName,
    value: FieldPathValue<TFieldValues, TFieldName>,
    options: SetValueConfig,
    skipClone: boolean,
    skipStateEmit = false,
  )

  };

  const _setValue = <
    TFieldName extends FieldPath<TFieldValues> = FieldPath<TFieldValues>,
  >(
    name: TFieldName,
    value: FieldPathValue<TFieldValues, TFieldName>,
    options: SetValueConfig,
    skipClone: boolean,
    skipStateEmit = false,
  ) => {
    const field = get(_fields, name);
    const isFieldArray = _names.array.has(name);
    const cloneValue = skipClone ? value : cloneObject(value);
    const previousValue = get(_formValues, name);
    const isValueUnchanged = deepEqual(previousValue, cloneValue);

    if (!isValueUnchanged) {
      set(_formValues, name, cloneValue);
    }

    if (isFieldArray) {
      _subjects.array.next({
        name,
        values: skipClone ? _formValues : cloneObject(_formValues),
      });

      if (
        (_proxyFormState.isDirty ||
          _proxyFormState.dirtyFields ||
          _proxySubscribeFormState.isDirty ||
          _proxySubscribeFormState.dirtyFields) &&
        options.shouldDirty
      ) {
        _updateDirtyFields();

        if (!skipStateEmit) {
          _subjects.state.next({
            name,
            dirtyFields: _formState.dirtyFields,
            isDirty: _getDirty(name, cloneValue),
          });
        }
      }
    } else {
      const isEmpty =
        (Array.isArray(cloneValue) && !cloneValue.length) ||
        isEmptyObject(cloneValue);

      if (!field || field._f || isNullOrUndefined(cloneValue) || isEmpty) {
        setFieldValue(name, cloneValue, options, skipClone, skipStateEmit);
      } else {
        setFieldValues(name, cloneValue, options, skipClone, skipStateEmit);
      }
    }

    if (!isValueUnchanged && !skipStateEmit) {
      const watched = isWatched(name, _names);
      const values = skipClone ? _formValues : cloneObject(_formValues);