artdaq_node_server  v1_00_07
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_getView.js
1 /* Built-in method references for those with the same name as other `lodash` methods. */
2 var nativeMax = Math.max,
3  nativeMin = Math.min;
4 
15 function getView(start, end, transforms) {
16  var index = -1,
17  length = transforms.length;
18 
19  while (++index < length) {
20  var data = transforms[index],
21  size = data.size;
22 
23  switch (data.type) {
24  case 'drop': start += size; break;
25  case 'dropRight': end -= size; break;
26  case 'take': end = nativeMin(end, start + size); break;
27  case 'takeRight': start = nativeMax(start, end - size); break;
28  }
29  }
30  return { 'start': start, 'end': end };
31 }
32 
33 module.exports = getView;