Simplify flow modules.

.internal/createFlow.js

@@ -1,38 +0,0 @@
-/**
- * Creates a `flow` or `flowRight` function.
- *
- * @private
- * @param {boolean} [fromRight] Specify iterating from right to left.
- * @returns {Function} Returns the new flow function.
- */
-function createFlow(fromRight) {
-  return (...funcs) => {
-    const length = funcs.length;
-
-    let index = length;
-
-    if (fromRight) {
-      funcs.reverse();
-    }
-
-    while (index--) {
-      if (typeof funcs[index] !== 'function') {
-        throw new TypeError('Expected a function');
-      }
-    }
-
-    return function(...args) {
-      const value = args[0];
-      let index = 0;
-      let result = length ? funcs[index].apply(this, args) : value;
-
-      while (++index < length) {
-        result = funcs[index].call(this, result);
-      }
-
-      return result;
-    };
-  };
-}
-
-export default createFlow;

flow.js

@@ -1,5 +1,3 @@
-import createFlow from './.internal/createFlow.js';
-
 /**
  * Creates a function that returns the result of invoking the given functions
  * with the `this` binding of the created function, where each successive
@@ -7,7 +5,7 @@ import createFlow from './.internal/createFlow.js';
  *
  * @since 3.0.0
  * @category Util
- * @param {...(Function|Function[])} [funcs] The functions to invoke.
+ * @param {Function[]} [funcs] The functions to invoke.
  * @returns {Function} Returns the new composite function.
  * @see flowRight
  * @example
@@ -20,6 +18,22 @@ import createFlow from './.internal/createFlow.js';
  * addSquare(1, 2);
  * // => 9
  */
-const flow = createFlow();
+function flow(funcs) {
+  const length = funcs ? funcs.length : 0;
+  let index = length;
+  while (index--) {
+    if (typeof funcs[index] != 'function') {
+      throw new TypeError('Expected a function');
+    }
+  }
+  return function(...args) {
+    let index = 0;
+    let result = length ? funcs[index].apply(this, args) : args[0];
+    while (++index < length) {
+      result = funcs[index].call(this, result);
+    }
+    return result;
+  };
+}
 
 export default flow;

flowRight.js

@@ -1,4 +1,4 @@
-import createFlow from './.internal/createFlow.js';
+import flow from './flow.js';
 
 /**
  * This method is like `flow` except that it creates a function that
@@ -6,7 +6,7 @@ import createFlow from './.internal/createFlow.js';
  *
  * @since 3.0.0
  * @category Util
- * @param {...(Function|Function[])} [funcs] The functions to invoke.
+ * @param {Function[]} [funcs] The functions to invoke.
  * @returns {Function} Returns the new composite function.
  * @see flow
  * @example
@@ -19,6 +19,8 @@ import createFlow from './.internal/createFlow.js';
  * addSquare(1, 2);
  * // => 9
  */
-const flowRight = createFlow(true);
+function flowRight(funcs) {
+  return flow(funcs.reverse());
+}
 
 export default flowRight;