DOMRect - Web APIs 编辑

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A DOMRect describes the size and position of a rectangle.

The type of box represented by the DOMRect is specified by the method or property that returned it. For example, VREyeParameters.renderRect from the WebVR API specifies the viewport of a canvas into which visuals for one eye of a head mounted display should be rendered.

It inherits from its parent, DOMRectReadOnly.

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Constructor

DOMRect()

Creates a new DOMRect object.

Properties

DOMRect inherits properties from its parent, DOMRectReadOnly. The difference is that they are not read-only anymore.

DOMRectReadOnly.x

The x coordinate of the DOMRect's origin (typically the top-left corner of the rectangle).

DOMRectReadOnly.y

The y coordinate of the DOMRect's origin (typically the top-left corner of the rectangle).

DOMRectReadOnly.width

The width of the DOMRect.

DOMRectReadOnly.height

The height of the DOMRect.

DOMRectReadOnly.top

Returns the top coordinate value of the DOMRect (has the same value as y, or y + height if height is negative.)

DOMRectReadOnly.right

Returns the right coordinate value of the DOMRect (has the same value as x + width, or x if width is negative.)

DOMRectReadOnly.bottom

Returns the bottom coordinate value of the DOMRect (has the same value as y + height, or y if height is negative.)

DOMRectReadOnly.left

Returns the left coordinate value of the DOMRect (has the same value as x, or x + width if width is negative.)

Methods

DOMRect inherits methods from its parent, DOMRectReadOnly.

Static methods

DOMRectReadOnly.fromRect()

Creates a new DOMRect object with a given location and dimensions.

Specifications

Browser compatibility

BCD tables only load in the browser

See also

• DOMPoint