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Merge pull request #7856 from erictleung/fix/usability-on-local-scope-and-functions

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Clarify instructions for Local Scope and Functions
This commit is contained in:
Rex Schrader
2016-04-03 14:11:29 -07:00
parent 5cbf53573a 8b2d7dc2ce
commit 87ebb3517b
1 changed files with 14 additions and 13 deletions
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27
challenges/01-front-end-development-certification/basic-javascript.json
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@ -2262,23 +2262,24 @@
"<blockquote>function myTest() {<br> var loc = \"foo\";<br> console.log(loc);<br>}<br>myTest(); // \"foo\"<br>console.log(loc); // \"undefined\"</blockquote>", "<blockquote>function myTest() {<br> var loc = \"foo\";<br> console.log(loc);<br>}<br>myTest(); // \"foo\"<br>console.log(loc); // \"undefined\"</blockquote>",
"<code>loc</code> is not defined outside of the function.", "<code>loc</code> is not defined outside of the function.",
"<h4>Instructions</h4>", "<h4>Instructions</h4>",
"Declare a local variable <code>myVar</code> inside <code>myFunction</code>" "Declare a local variable <code>myVar</code> inside <code>myFunction</code>. Run the tests and then follow the instructions commented out in the editor.",
"<strong>Hint</strong><br>Refreshing the page may help if you get stuck."
], ],
"releasedOn": "January 1, 2016", "releasedOn": "January 1, 2016",
"head": [ "head": [
"var logOutput = \"\";", "var logOutput = \"\";",
"var originalConsole = console", "var originalConsole = console",
"function capture() {", "function capture() {",
" var nativeLog = console.log;", " var nativeLog = console.log;",
" console.log = function (message) {", " console.log = function (message) {",
" logOutput = message;", " logOutput = message;",
" if(nativeLog.apply) {", " if(nativeLog.apply) {",
" nativeLog.apply(originalConsole, arguments);", " nativeLog.apply(originalConsole, arguments);",
" } else {", " } else {",
" var nativeMsg = Array.prototype.slice.apply(arguments).join(' ');", " var nativeMsg = Array.prototype.slice.apply(arguments).join(' ');",
" nativeLog(nativeMsg);", " nativeLog(nativeMsg);",
" }", " }",
" };", " };",
"}", "}",
"", "",
"function uncapture() {", "function uncapture() {",
@ -2295,11 +2296,11 @@
"}", "}",
"myFunction();", "myFunction();",
"", "",
"// run and check the console ", "// Run and check the console",
"// myVar is not defined outside of myFunction", "// myVar is not defined outside of myFunction",
"console.log(myVar);", "console.log(myVar);",
"", "",
"// now remove the console log line to pass the test", "// Now remove the console log line to pass the test",
"" ""
], ],
"tail": [ "tail": [