Bump to v3.0.0.

internal/baseAt.js

@@ -0,0 +1,35 @@
+define(['./isIndex', './isLength'], function(isIndex, isLength) {
+
+  /** Used as a safe reference for `undefined` in pre-ES5 environments. */
+  var undefined;
+
+  /**
+   * The base implementation of `_.at` without support for strings and individual
+   * key arguments.
+   *
+   * @private
+   * @param {Array|Object} collection The collection to iterate over.
+   * @param {number[]|string[]} [props] The property names or indexes of elements to pick.
+   * @returns {Array} Returns the new array of picked elements.
+   */
+  function baseAt(collection, props) {
+    var index = -1,
+        length = collection.length,
+        isArr = isLength(length),
+        propsLength = props.length,
+        result = Array(propsLength);
+
+    while(++index < propsLength) {
+      var key = props[index];
+      if (isArr) {
+        key = parseFloat(key);
+        result[index] = isIndex(key, length) ? collection[key] : undefined;
+      } else {
+        result[index] = collection[key];
+      }
+    }
+    return result;
+  }
+
+  return baseAt;
+});