Simplify shuffle and sample.

sample.js

@@ -1,21 +1,18 @@
-import arraySample from './.internal/arraySample.js'
-import baseSample from './.internal/baseSample.js'
-
 /**
- * Gets a random element from `collection`.
+ * Gets a random element from `array`.
  *
  * @since 2.0.0
- * @category Collection
- * @param {Array|Object} collection The collection to sample.
+ * @category Array
+ * @param {Array} array The array to sample.
  * @returns {*} Returns the random element.
  * @example
  *
  * sample([1, 2, 3, 4])
  * // => 2
  */
-function sample(collection) {
-  const func = Array.isArray(collection) ? arraySample : baseSample
-  return func(collection)
+function sample(array) {
+  const length = array == null ? 0 : array.length
+  return length ? array[Math.floor(Math.random() * length)] : undefined
 }
 
 export default sample