yodacom
8/26/2017 - 12:58 PM

JS Bin // source https://jsbin.com/lenuva

JS Bin

// source https://jsbin.com/lenuva

jsbin.lenuva.js
content_copyfile_download
// 
function shortWords(array) {
  return array.filter(function(word) {
    return word.length < 5;
  });
}






/* From here down, you are not expected to 
   understand.... for now :)  
   
   
   Nothing to see here!
   
*/


// tests

function testFunctionWorks(fn, input, expected) {
  
  var result = fn(input);
  if (
    result && result.length === expected.length &&
    result.every(function(item) {
      return expected.indexOf(item) > -1;
    })) {
    console.log('SUCCESS: `' + fn.name + '` works!')
    return true;
  } 
  else {
    console.error('FAILURE: `' + fn.name + '([' + input + '])` should be ' + expected +
      ' but was ' + fn(input))
    return false;
  } 
}

function runTests() {
  
  var input1 = ['cat', 'oblivion', 'dog', 'patriarchy', 'blue'];
  var result1 = ['cat', 'dog', 'blue'];
  var input2 = ['rainbow', 'the', 'big'];
  var result2 = ['the', 'big'];
  
  var testResults = [
    testFunctionWorks(shortWords, input1, result1),
    testFunctionWorks(shortWords, input2, result2),
  ];
  
  
  
  var numPassing = testResults.filter(function(result){ return result; }).length;
  console.log(numPassing + ' out of ' + testResults.length + ' tests passing.');
}

runTests();
index.html
content_copyfile_download
<!DOCTYPE html>
<html>
<head>
  <meta charset="utf-8">
  <meta name="viewport" content="width=device-width">
  <title>JS Bin</title>
</head>
<body>

<script id="jsbin-javascript">
// 
function shortWords(array) {
  return array.filter(function(word) {
    return word.length < 5;
  });
}






/* From here down, you are not expected to 
   understand.... for now :)  
   
   
   Nothing to see here!
   
*/


// tests

function testFunctionWorks(fn, input, expected) {
  
  var result = fn(input);
  if (
    result && result.length === expected.length &&
    result.every(function(item) {
      return expected.indexOf(item) > -1;
    })) {
    console.log('SUCCESS: `' + fn.name + '` works!')
    return true;
  } 
  else {
    console.error('FAILURE: `' + fn.name + '([' + input + '])` should be ' + expected +
      ' but was ' + fn(input))
    return false;
  } 
}

function runTests() {
  
  var input1 = ['cat', 'oblivion', 'dog', 'patriarchy', 'blue'];
  var result1 = ['cat', 'dog', 'blue'];
  var input2 = ['rainbow', 'the', 'big'];
  var result2 = ['the', 'big'];
  
  var testResults = [
    testFunctionWorks(shortWords, input1, result1),
    testFunctionWorks(shortWords, input2, result2),
  ];
  
  
  
  var numPassing = testResults.filter(function(result){ return result; }).length;
  console.log(numPassing + ' out of ' + testResults.length + ' tests passing.');
}

runTests();
</script>



<script id="jsbin-source-javascript" type="text/javascript">// 
function shortWords(array) {
  return array.filter(function(word) {
    return word.length < 5;
  });
}






/* From here down, you are not expected to 
   understand.... for now :)  
   
   
   Nothing to see here!
   
*/


// tests

function testFunctionWorks(fn, input, expected) {
  
  var result = fn(input);
  if (
    result && result.length === expected.length &&
    result.every(function(item) {
      return expected.indexOf(item) > -1;
    })) {
    console.log('SUCCESS: `' + fn.name + '` works!')
    return true;
  } 
  else {
    console.error('FAILURE: `' + fn.name + '([' + input + '])` should be ' + expected +
      ' but was ' + fn(input))
    return false;
  } 
}

function runTests() {
  
  var input1 = ['cat', 'oblivion', 'dog', 'patriarchy', 'blue'];
  var result1 = ['cat', 'dog', 'blue'];
  var input2 = ['rainbow', 'the', 'big'];
  var result2 = ['the', 'big'];
  
  var testResults = [
    testFunctionWorks(shortWords, input1, result1),
    testFunctionWorks(shortWords, input2, result2),
  ];
  
  
  
  var numPassing = testResults.filter(function(result){ return result; }).length;
  console.log(numPassing + ' out of ' + testResults.length + ' tests passing.');
}

runTests();</script></body>
</html>