[fixed] typeGuards to check for a value before accessing its properties

Authored by appsforartists on Oct 6 2017, 10:06 PM.

Description

[fixed] typeGuards to check for a value before accessing its properties

Reviewers: O2 Material Motion, O3 Material JavaScript platform reviewers, Material Motion, featherless

Reviewed By: O2 Material Motion, Material Motion, featherless

Tags: Material Motion

Differential Revision: http://codereview.cc/D3396