--- /dev/null
+/**
+ * Removes `key` and its value from the stack.
+ *
+ * @private
+ * @name delete
+ * @memberOf Stack
+ * @param {string} key The key of the value to remove.
+ * @returns {boolean} Returns `true` if the entry was removed, else `false`.
+ */
+function stackDelete(key) {
+ var data = this.__data__,
+ result = data['delete'](key);
+
+ this.size = data.size;
+ return result;
+}
+
+module.exports = stackDelete;