react app

react-app/node_modules/lodash/internal/createAssigner.js

@@ -0,0 +1,41 @@
+var bindCallback = require('./bindCallback'),
+    isIterateeCall = require('./isIterateeCall'),
+    restParam = require('../function/restParam');
+
+/**
+ * Creates a `_.assign`, `_.defaults`, or `_.merge` function.
+ *
+ * @private
+ * @param {Function} assigner The function to assign values.
+ * @returns {Function} Returns the new assigner function.
+ */
+function createAssigner(assigner) {
+  return restParam(function(object, sources) {
+    var index = -1,
+        length = object == null ? 0 : sources.length,
+        customizer = length > 2 ? sources[length - 2] : undefined,
+        guard = length > 2 ? sources[2] : undefined,
+        thisArg = length > 1 ? sources[length - 1] : undefined;
+
+    if (typeof customizer == 'function') {
+      customizer = bindCallback(customizer, thisArg, 5);
+      length -= 2;
+    } else {
+      customizer = typeof thisArg == 'function' ? thisArg : undefined;
+      length -= (customizer ? 1 : 0);
+    }
+    if (guard && isIterateeCall(sources[0], sources[1], guard)) {
+      customizer = length < 3 ? undefined : customizer;
+      length = 1;
+    }
+    while (++index < length) {
+      var source = sources[index];
+      if (source) {
+        assigner(object, source, customizer);
+      }
+    }
+    return object;
+  });
+}
+
+module.exports = createAssigner;