diff --git a/curriculum/challenges/english/04-data-visualization/data-visualization-with-d3/add-axes-to-a-visualization.english.md b/curriculum/challenges/english/04-data-visualization/data-visualization-with-d3/add-axes-to-a-visualization.english.md
index 1eb2e9b725..ed665660f7 100644
--- a/curriculum/challenges/english/04-data-visualization/data-visualization-with-d3/add-axes-to-a-visualization.english.md
+++ b/curriculum/challenges/english/04-data-visualization/data-visualization-with-d3/add-axes-to-a-visualization.english.md
@@ -33,7 +33,7 @@ tests:
   - text: The y-axis <code>g</code> element should have a <code>transform</code> attribute to translate the axis by (60, 0).
     testString: assert($('g').eq(1).attr('transform').match(/translate\(60\s*?,\s*?0\)/g), 'The y-axis <code>g</code> element should have a <code>transform</code> attribute to translate the axis by (60, 0).');
   - text: Your code should call the <code>yAxis</code>.
-    testString: assert(code.match(/\.call\(yAxis\)/g), 'Your code should call the <code>yAxis</code>.');
+    testString: assert(code.match(/\.call\(\s*yAxis\s*\)/g), 'Your code should call the <code>yAxis</code>.');
 
 ```
 
diff --git a/curriculum/challenges/english/04-data-visualization/json-apis-and-ajax/change-text-with-click-events.english.md b/curriculum/challenges/english/04-data-visualization/json-apis-and-ajax/change-text-with-click-events.english.md
index a42d581814..d871b80a33 100644
--- a/curriculum/challenges/english/04-data-visualization/json-apis-and-ajax/change-text-with-click-events.english.md
+++ b/curriculum/challenges/english/04-data-visualization/json-apis-and-ajax/change-text-with-click-events.english.md
@@ -23,7 +23,7 @@ Add code inside the <code>onclick</code> event handler to change the text inside
 ```yml
 tests:
   - text: Your code should use the <code>document.getElementsByClassName</code> method to select the element with class <code>message</code> and set its <code>textContent</code> to the given string.
-    testString: assert(code.match(/document\.getElementsByClassName\(\s*?('|")message\1\s*?\)\[0\]\.textContent\s*?=\s*?('|")Here is the message\2/g), 'Your code should use the <code>document.getElementsByClassName</code> method to select the element with class <code>message</code> and set its <code>textContent</code> to the given string.');
+    testString: assert(code.match(/document\s*\.getElementsByClassName\(\s*?('|")message\1\s*?\)\[0\]\s*\.textContent\s*?=\s*?('|")Here is the message\2/g), 'Your code should use the <code>document.getElementsByClassName</code> method to select the element with class <code>message</code> and set its <code>textContent</code> to the given string.');
 
 ```
 
diff --git a/curriculum/challenges/english/04-data-visualization/json-apis-and-ajax/get-json-with-the-javascript-xmlhttprequest-method.english.md b/curriculum/challenges/english/04-data-visualization/json-apis-and-ajax/get-json-with-the-javascript-xmlhttprequest-method.english.md
index 8f649e3208..2deb30361d 100644
--- a/curriculum/challenges/english/04-data-visualization/json-apis-and-ajax/get-json-with-the-javascript-xmlhttprequest-method.english.md
+++ b/curriculum/challenges/english/04-data-visualization/json-apis-and-ajax/get-json-with-the-javascript-xmlhttprequest-method.english.md
@@ -38,9 +38,9 @@ tests:
   - text: Your code should have an <code>onload</code> event handler set to a function.
     testString: assert(code.match(/\.onload\s*=\s*function\s*?\(\s*?\)\s*?{/g), 'Your code should have an <code>onload</code> event handler set to a function.');
   - text: Your code should use the <code>JSON.parse</code> method to parse the <code>responseText</code>.
-    testString: assert(code.match(/JSON\.parse\(.*\.responseText\)/g), 'Your code should use the <code>JSON.parse</code> method to parse the <code>responseText</code>.');
+    testString: assert(code.match(/JSON\s*\.parse\(.*\.responseText\)/g), 'Your code should use the <code>JSON.parse</code> method to parse the <code>responseText</code>.');
   - text: Your code should get the element with class <code>message</code> and change its inner HTML to the string of JSON data.
-    testString: assert(code.match(/document\.getElementsByClassName\(\s*?('|")message\1\s*?\)\[0\]\.innerHTML\s*?=\s*?JSON\.stringify\(.+?\)/g), 'Your code should get the element with class <code>message</code> and change its inner HTML to the string of JSON data.');
+    testString: assert(code.match(/document\s*\.getElementsByClassName\(\s*?('|")message\1\s*?\)\[0\]\s*\.innerHTML\s*?=\s*?JSON\.stringify\(.+?\)/g), 'Your code should get the element with class <code>message</code> and change its inner HTML to the string of JSON data.');
 
 ```
 
diff --git a/curriculum/challenges/english/04-data-visualization/json-apis-and-ajax/handle-click-events-with-javascript-using-the-onclick-property.english.md b/curriculum/challenges/english/04-data-visualization/json-apis-and-ajax/handle-click-events-with-javascript-using-the-onclick-property.english.md
index 8e9299e6f6..27ddd68b59 100644
--- a/curriculum/challenges/english/04-data-visualization/json-apis-and-ajax/handle-click-events-with-javascript-using-the-onclick-property.english.md
+++ b/curriculum/challenges/english/04-data-visualization/json-apis-and-ajax/handle-click-events-with-javascript-using-the-onclick-property.english.md
@@ -23,7 +23,7 @@ Add a click event handler inside of the <code>DOMContentLoaded</code> function f
 ```yml
 tests:
   - text: Your code should use the <code>document.getElementById</code> method to select the <code>getMessage</code> element.
-    testString: assert(code.match(/document\.getElementById\(\s*?('|")getMessage\1\s*?\)/g), 'Your code should use the <code>document.getElementById</code> method to select the <code>getMessage</code> element.');
+    testString: assert(code.match(/document\s*\.getElementById\(\s*?('|")getMessage\1\s*?\)/g), 'Your code should use the <code>document.getElementById</code> method to select the <code>getMessage</code> element.');
   - text: Your code should add an <code>onclick</code> event handler.
     testString: assert(typeof document.getElementById('getMessage').onclick === 'function', 'Your code should add an <code>onclick</code> event handler.');