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return null instead of false in Viewer.getOverlayById function and correct documentation

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This commit is contained in:
Alexey Tikhonov 2016-02-20 00:45:33 +03:00
parent 7bcb1cc59f
commit 97381b04a9
1 changed files with 3 additions and 3 deletions
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6
src/viewer.js
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@ -1947,11 +1947,11 @@ $.extend( $.Viewer.prototype, $.EventSource.prototype, $.ControlDock.prototype,
/**
* Finds an overlay identified by the reference element or element id
* and returns it as an object, return false if not found.
* and returns it as an object, return null if not found.
* @method
* @param {Element|String} element - A reference to the element or an
* element id which represent the ovelay content to be removed.
* @return {OpenSeadragon.Overlay} Chainable.
* @return {OpenSeadragon.Overlay} the matching overlay or null if none found.
*/
getOverlayById: function( element ) {
var i;
@ -1962,7 +1962,7 @@ $.extend( $.Viewer.prototype, $.EventSource.prototype, $.ControlDock.prototype,
if (i>=0) {
return this.currentOverlays[i];
} else {
return false;
return null;
}
},