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JavaScript's functional programming helper library.

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define(['./_tagTester', './isFunction', './isArrayBuffer', './_stringTagBug'], function (_tagTester, isFunction, isArrayBuffer, _stringTagBug) {

  var isDataView = _tagTester('DataView');

  // In IE 10 - Edge 13, we need a different heuristic
  // to determine whether an object is a `DataView`.
  // Also, in cases where the native `DataView` is
  // overridden we can't rely on the tag itself.
  function alternateIsDataView(obj) {
    return obj != null && isFunction(obj.getInt8) && isArrayBuffer(obj.buffer);
  }

  var isDataView$1 = (_stringTagBug.hasDataViewBug ? alternateIsDataView : isDataView);

  return isDataView$1;

});