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node_modules/ramda/es/chain.js

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+import _curry2 from "./internal/_curry2.js";
+import _dispatchable from "./internal/_dispatchable.js";
+import _makeFlat from "./internal/_makeFlat.js";
+import _xchain from "./internal/_xchain.js";
+import map from "./map.js";
+/**
+ * `chain` maps a function over a list and concatenates the results. `chain`
+ * is also known as `flatMap` in some libraries.
+ *
+ * Dispatches to the `chain` method of the second argument, if present,
+ * according to the [FantasyLand Chain spec](https://github.com/fantasyland/fantasy-land#chain).
+ *
+ * If second argument is a function, `chain(f, g)(x)` is equivalent to `f(g(x), x)`.
+ *
+ * Acts as a transducer if a transformer is given in list position.
+ *
+ * @func
+ * @memberOf R
+ * @since v0.3.0
+ * @category List
+ * @sig Chain m => (a -> m b) -> m a -> m b
+ * @param {Function} fn The function to map with
+ * @param {Array} list The list to map over
+ * @return {Array} The result of flat-mapping `list` with `fn`
+ * @example
+ *
+ *      const duplicate = n => [n, n];
+ *      R.chain(duplicate, [1, 2, 3]); //=> [1, 1, 2, 2, 3, 3]
+ *
+ *      R.chain(R.append, R.head)([1, 2, 3]); //=> [1, 2, 3, 1]
+ */
+
+var chain =
+/*#__PURE__*/
+_curry2(
+/*#__PURE__*/
+_dispatchable(['fantasy-land/chain', 'chain'], _xchain, function chain(fn, monad) {
+  if (typeof monad === 'function') {
+    return function (x) {
+      return fn(monad(x))(x);
+    };
+  }
+
+  return _makeFlat(false)(map(fn, monad));
+}));
+
+export default chain;