DOMPoint: x property
Note: This feature is available in Web Workers.
The DOMPoint interface's
x property holds the horizontal coordinate, x, for a
point in space.
In general, positive values x mean to the right,
and negative values of x means to the left, barring any transforms that may
have altered the orientation of the axes.
Value
A double-precision floating-point value indicating the x coordinate's value for the
point. This value is unrestricted, meaning that it is allowed to be
infinite or invalid (that is, its value may be NaN or ±Infinity).