(originalChunk)
| 30060 | } |
| 30061 | |
| 30062 | function cloneChunk(originalChunk) { |
| 30063 | var Ctor = originalChunk.constructor; |
| 30064 | // Only shallow clone is enough when Array. |
| 30065 | return Ctor === Array ? originalChunk.slice() : new Ctor(originalChunk); |
| 30066 | } |
| 30067 | |
| 30068 | var TRANSFERABLE_PROPERTIES = [ |
| 30069 | 'hasItemOption', '_nameList', '_idList', '_invertedIndicesMap', |