From 1c54ab471a1678071580e274dcba984691a8c1b0 Mon Sep 17 00:00:00 2001
From: Eric Leung <eric@erictleung.com>
Date: Sat, 18 Jun 2016 23:16:11 -0700
Subject: [PATCH] Clarify Escape Sequences in Strings challenge

- Add code tags into table
- Rewrite instructions for more applicable coding test
- Add more tests to be more specific on what you need to pass
---
 .../basic-javascript.json                        | 16 ++++++++++++----
 1 file changed, 12 insertions(+), 4 deletions(-)

diff --git a/seed/challenges/01-front-end-development-certification/basic-javascript.json b/seed/challenges/01-front-end-development-certification/basic-javascript.json
index 4cce7dc64d..198a4e064c 100644
--- a/seed/challenges/01-front-end-development-certification/basic-javascript.json
+++ b/seed/challenges/01-front-end-development-certification/basic-javascript.json
@@ -1036,10 +1036,14 @@
       "title": "Escape Sequences in Strings",
       "description": [
         "Quotes are not the only characters that can be <dfn>escaped</dfn> inside a string. Here is a table of common escape sequences:",
-        "<table class=\"table table-striped\"><thead><tr><th>Code</th><th>Output</th></tr></thead><tbody><tr><td>\\'</td><td>single quote</td></tr><tr><td>\\\"</td><td>double quote</td></tr><tr><td>\\\\</td><td>backslash</td></tr><tr><td>\\n</td><td>new line</td></tr><tr><td>\\r</td><td>carriage return</td></tr><tr><td>\\t</td><td>tab</td></tr><tr><td>\\b</td><td>backspace</td></tr><tr><td>\\f</td><td>form feed</td></tr></tbody></table>",
+        "<table class=\"table table-striped\"><thead><tr><th>Code</th><th>Output</th></tr></thead><tbody><tr><td><code>\\'</code></td><td>single quote</td></tr><tr><td><code>\\\"</code></td><td>double quote</td></tr><tr><td><code>\\\\</code></td><td>backslash</td></tr><tr><td><code>\\n</code></td><td>new line</td></tr><tr><td><code>\\r</code></td><td>carriage return</td></tr><tr><td><code>\\t</code></td><td>tab</td></tr><tr><td><code>\\b</code></td><td>backspace</td></tr><tr><td><code>\\f</code></td><td>form feed</td></tr></tbody></table>",
         "<em>Note that the backslash itself must be escaped in order to display as a backslash.</em>",
         "<h4>Instructions</h4>",
-        "Encode the following sequence, separated by spaces:<br><code>backslash tab tab carriage-return new-line</code> and assign it to <code>myStr</code>"
+        "Assign the following two lines of text into the single variable <code>myStr</code> using escape sequences.",
+        "<blockquote>Here is a backslash: \\.<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Here is a new line with two tabs.</blockquote>",
+        "You will need to use escape sequences to insert special characters correctly. You will also need to follow the spacing as it looks above with no additional spaces between each escape sequence.",
+        "Here is the text with the escape sequences written out.",
+        "<q>Here is a backslash: <code>backslash</code>.<code>newline</code> <code>tab</code> <code>tab</code> Here is a new line with two tabs.</q>"
       ],
       "releasedOn": "January 1, 2016",
       "challengeSeed": [
@@ -1054,10 +1058,14 @@
         "else{return null;}})();"
       ],
       "solutions": [
-        "var myStr = \"\\\\ \\t \\t \\r \\n\";"
+        "var myStr = \"Here is a backslash: \\\\.\\n\\t\\tHere is a new line with two tabs.\";"
       ],
       "tests": [
-        "assert(myStr === \"\\\\ \\t \\t \\r \\n\", 'message: <code>myStr</code> should have the escape sequences for <code>backslash tab tab carriage-return new-line</code> separated by spaces');"
+        "assert(myStr === \"Here is a backslash: \\\\.\\n\\t\\tHere is a new line with two tabs.\", 'message: <code>myStr</code> should have encoded text with the proper escape sequences and spacing.');",
+        "assert(myStr.match(/\\t/g).length == 2, 'message: <code>myStr</code> should have two tab characters <code>\\t</code>');",
+        "assert(myStr.match(/\\n/g).length == 1, 'message: <code>myStr</code> should have one newline character <code>\\n</code>');",
+        "assert(myStr.match(/\\\\/g).length == 1, 'message: <code>myStr</code> should have a correctly escaped backslash character <code>\\\\</code>');",
+        "assert(myStr === \"Here is a backslash: \\\\.\\n\\t\\tHere is a new line with two tabs.\", 'message: <code>myStr</code> should not have any spaces in between consecutive escape sequences.');"
       ],
       "type": "waypoint",
       "challengeType": 1,