updateChildren

Writes the children in update (paths to values; a null value deletes) without replacing the other children.

Writes the children in update and calls listener once the server has acknowledged it.

Writes the children in update (paths to values; a null value deletes) without replacing the other children.

Writes the children in update and calls listener once the server has acknowledged it.

Writes the children in update (paths to values; a null value deletes) without replacing the other children.

Writes the children in update and calls listener once the server has acknowledged it.

Writes the children in update (paths to values; a null value deletes) without replacing the other children.

Writes the children in update and calls listener once the server has acknowledged it.

Writes the children in update (paths to values; a null value deletes) without replacing the other children.

Writes the children in update and calls listener once the server has acknowledged it.