answered 4-stretch-explore chrome.md

Author: leerogerfn

Sprint-2/4-stretch-explore/chrome.md

@@ -8,8 +8,11 @@ Let's try an example.
 In the Chrome console, invoke the function `alert` with one argument, the string `"Hello world!"`;
 
 What effect does calling the `alert` function have?
+A: The dialogue box come out with an optional message.
 
 Now try invoking the function `prompt` with a string input of `"What is your name?"` - store the return value of your call to `prompt` in an variable called `myName`.
 
 What effect does calling the `prompt` function have?
 What is the return value of `prompt`?
+A: There have a dialogue box appear and able to submit information. 
+After submit the information (Name). The information submitted to server.