Metadata index to use when the CompareView generates diff set annotation markers.
CompareView = function() {
this.metadataKey = (default value);
}
metadataKey: string;
A valid string. The default value is "compareDiff".
Every time a new DocumentDifference object is generated internally, the CompareView will generate AnnTextHiliteObjects for each region in the difference set.
For every object that the compare store generates, a metadata entry will be added containing the Compare.PageCharactersDifference associated with the region. The index into the object's metadata will be the value of metadataKey.
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