Electrostatic potential → electric field

In some region of space, the electrostatic potential is given by,

 [V].

Here $x$, $y$, and $z$ are measured in meters. What is the electric field in this region?

$\vec{E}$ = $\hat{x}$ + $\hat{y}$ + $\hat{z} \; \left[ \text{V/m} \right]$