DOMPointInit.x
The DOMPointInit
dictionary's
x
property is used to specify the x component of a point
in 2D or 3D space when either creating or serializing a DOMPoint
or
DOMPointReadOnly
.
In general, positive values x
mean to the right, and negative values of
x
means to the left, assuming that transforms have not altered the
orientation of the axes.
Syntax
var DOMPointInit = {
x: xPos
};
DOMPointInit.x = xPos;
var xPos = DOMPointInit.x;
Value
A double-precision floating-point value indicating the point's x coordinate. This value
is unrestricted, meaning that it is allowed to be infinite or invalid
(that is, its value may be NaN
or ±Infinity
).
If this property is missing when the DOMPointInit
object is passed into
fromPoint()
, the value is assumed to be 0 by default.
DOMPointInit
is used as an input when calling either
DOMPointReadOnly.fromPoint()
or DOMPoint.fromPoint()
, and
is returned by the DOMPointReadOnly.toJSON()
and
DOMPoint.toJSON()
methods.
Specifications
Specification | Status | Comment |
---|---|---|
Geometry Interfaces Module Level 1 The definition of 'x' in that specification. |
Candidate Recommendation | Initial definition |
Browser compatibility
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