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node_modules/array-slice/index.js

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+/*!
+ * array-slice <https://github.com/jonschlinkert/array-slice>
+ *
+ * Copyright (c) 2014-2017, Jon Schlinkert.
+ * Released under the MIT License.
+ */
+
+'use strict';
+
+module.exports = function slice(arr, start, end) {
+  var len = arr.length;
+  var range = [];
+
+  start = idx(len, start);
+  end = idx(len, end, len);
+
+  while (start < end) {
+    range.push(arr[start++]);
+  }
+  return range;
+};
+
+function idx(len, pos, end) {
+  if (pos == null) {
+    pos = end || 0;
+  } else if (pos < 0) {
+    pos = Math.max(len + pos, 0);
+  } else {
+    pos = Math.min(pos, len);
+  }
+
+  return pos;
+}