Methods
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import {toSize} from 'ol/size';Returns an
Sizearray for the passed in number (meaning: square) orSizearray. (meaning: non-square),Name Type Description sizenumber | module:ol/size~Size Width and height.
sizemodule:ol/size~Size | undefined Optional reusable size array.
Returns:
Size.
 
Type Definitions
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Size{Array.<number>}
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An array of numbers representing a size:
[width, height]. 
 OpenLayers