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backend/node_modules/obliterator/includes.js

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+/**
+ * Obliterator Includes Function
+ * ==============================
+ *
+ * Function taking an iterable and returning whether the given item can be
+ * found in it.
+ */
+var iter = require('./iter.js');
+
+/**
+ * Includes.
+ *
+ * @param  {Iterable} iterable  - Target iterable.
+ * @param  {function} value     - Searched value.
+ * @return {boolean}
+ */
+module.exports = function includes(iterable, value) {
+  var iterator = iter(iterable);
+
+  var step;
+
+  while (((step = iterator.next()), !step.done)) {
+    if (step.value === value) return true;
+  }
+
+  return false;
+};