guava-stackbox-export-FIXED.json

[
  {
    "answer": "pure",
    "choices": ["impure", "pure"],
    "function": "const sums = (a,b) => {return a+b}",
    "question": "Is the following function pure or impure?"
  },
  {
    "answer": "O(b)",
    "choices": ["O(a + b)", "O(ab)", "O(a)", "O(b)"],
    "function": "const func = (a, b) => { \n  let result = 0;\n  for(let i = 0; i < b, i++){ \n    result += a; \n  }\n  return result;\n}",
    "question": "What is the time complexity of the following function?"
  },
  {
    "answer": "Merge Sort",
    "choices": ["Bubble Sort", "Merge Sort", "Insertion Sort", "Quick Sort"],
    "question": "Which of these sorting algorithms is fastest for Worst Case?"
  },
  {
    "answer": "O(n!)",
    "choices": ["O(n^2)", "O(2^n)", "O(n!)", "O(log(n))"],
    "question": "Which of these time complexities is slowest?"
  },
  {
    "answer": "O(1)",
    "choices": ["O(n)", "O(log(n))", "O(1)", "O(n^2)"],
    "function": "const func = (arr, elem) => {\n  for(let i = 0; i < arr.length; i++){\n    if(arr[i] == elem) return true; \n  }\n  return false;\n}",
    "question": "What is the Best Case time complexity for the following function?"
  },
  {
    "answer": "O(n)",
    "choices": ["O(n)", "O(log(n))", "O(1)", "O(n^2)"],
    "function": "const func = (arr, elem) => {\n  for(let i = 0; i < arr.length; i++){\n    if(arr[i] == elem) return true; \n  }\n  return false;\n}",
    "question": "What is the Worst Case time complexity for the following function?"
  },
  {
    "answer": "O(1)",
    "choices": ["O(1)", "O(a)", "O(b)"],
    "function": "const func = (a, b) => {\nfor (let i = 0; i < 100000000, i++){\na+= b;\n}\nreturn a;\n}",
    "question": "What is the time complexity for the following function?"
  },
  {
    "answer": "none of the above",
    "choices": ["12", "0", "7", "none of the above"],
    "function": "function getRectArea(3, 4) {\n  if (width > 0 && height > 0) {\n    return;\n  }\n}",
    "question": "What is the expected output of the following function?"
  },
  {
    "answer": "O(1)",
    "choices": ["O(1)", "O(n)", "O(n^2)", "O(n!)"],
    "question": "What is the look up time in a hash table?"
  },
  {
    "answer": "O(n^2), O(2^n), O(n!)",
    "choices": [
      "O(n^2), O(n log n), O(n!)",
      "O(n), O(n log n), O(1)",
      "O(n^2), O(2^n), O(n!)",
      "O(1), O(n^2), O(log n)"
    ],
    "question": "Which list is ordered from fastest to slowest?"
  },
  {
    "answer": "120",
    "choices": ["120", "0", "720", "6"],
    "function": "const factorial = number => {\n  return number < 2 ? 1 : number * factorial(number - 1);\n};\n\nfactorial(5)",
    "question": "What is the expected output of the following function?"
  },
  {
    "answer": "<script>",
    "choices": ["<scripting>", "<js>", "<script>", "<javascript>"],
    "question": "Into which HTML element do we put JavaScript we want to execute?"
  },
  {
    "answer": "document.getElementById(\"demo\").innerHTML = \"Hello World!\";",
    "choices": [
      "document.getElementById(\"demo\").innerHTML = \"Hello World!\";",
      "document.getElementByName(\"p\").innerHTML = \"Hello World!\";",
      "#demo.innerHTML = \"Hello World!\";",
      "document.getElement(\"p\").innerHTML = \"Hello World!\";"
    ],
    "function": "<p id=\"demo\">This is a demonstration.</p>",
    "question": "What is the correct JavaScript syntax to change the content of a HTML element?"
  },
  {
    "answer": "function myFunction() {}",
    "choices": [
      "myFunction = function()",
      "function:myFunction() {}",
      "function myFunction() {}"
    ],
    "question": "How do you create a function called myFunction in JavaScript?"
  },
  {
    "answer": "8",
    "choices": ["8", "0", "9", "error"],
    "function": "<script type=\"text/javascript\"> \n  var a=\"GeeksforGeeks\"; \n  var x=a.lastIndexOf(\"G\"); \n  document.write(x); \n</script>",
    "question": "Predict the output of the following"
  },
  {
    "answer": "program",
    "choices": ["interface", "throws", "program", "short"],
    "question": "Which of the following is not a reserved word in JavaScript?"
  },
  {
    "answer": "s",
    "choices": ["sf", "ks", "s", "k"],
    "function": "<script type=\"text/javascript\" language=\"javascript\"> \n  \n  var a = \"GeeksforGeeks\"; \n  var result = a.substring(4, 5); \n  document.write(result); \n    \n</script>",
    "question": "Predict the output of the following"
  },
  {
    "answer": "isInteger(value)",
    "choices": [
      "Integer(value)",
      "ifInteger(value)",
      "isInteger(value)",
      "ifinteger(value)"
    ],
    "question": "In JavaScript, we do not have datatypes like integer and float. What is the function that can be used to check if the number is an integer or not?"
  },
  {
    "answer": "[2,1,1]",
    "choices": ["[2,1,1]", "[2,undefined,1]", "[2,1,2]", "[2,undefined,2]"],
    "function": "(function(x, f = () => x) {\n  var x;\n  var y = x;\n  x = 2;\n  return [x, y, f()];\n})(1)",
    "question": "Predict the output of the following"
  },
  {
    "answer": "['outer', 'outer']",
    "choices": [
      "['inner', 'outer']",
      "['outer', 'outer']",
      "[undefined, undefined]",
      "Error"
    ],
    "function": "(function() {\n  return [\n    (() => this.x).bind({ x: 'inner' })(),\n    (() => this.x)()\n  ]\n}).call({ x: 'outer' });",
    "question": "Predict the output of the following"
  },
  {
    "answer": "['function', 'undefined']",
    "choices": [
      "['function', 'undefined']",
      "['function', 'function']",
      "['undefined', 'undefined']",
      "Error"
    ],
    "function": "(function() {\n  let f = this ? class g { } : class h { };\n  return [\n    typeof f,\n    typeof h\n  ];\n})();",
    "question": "Predict the output of the following"
  },
  {
    "answer": "object",
    "choices": ["function", "object", "undefined", "Error"],
    "function": "(typeof (new (class { class () {} })))",
    "question": "What is the output of the following?"
  },
  {
    "answer": "Error",
    "choices": ["1", "3", "[1,2,3]", "Error"],
    "function": "((...x, xs)=>x)(1,2,3)",
    "question": "What is the output of the following?"
  },
  {
    "answer": "//This is a comment",
    "choices": [
      "<!–This is a comment–&gt",
      "//This is a comment",
      "–This is a comment",
      "**This is a comment**"
    ],
    "question": "What is the correct syntax for adding comments in JavaScript?"
  },
  {
    "answer": "number",
    "choices": ["float", "number", "integer", "double"],
    "function": "document.write(typeof(24.49));",
    "question": "What will be the output of the following"
  },
  {
    "answer": "forEach()",
    "choices": ["forEach()", "every()", "forEvery()", "each()"],
    "question": "Which of the following calls a function for each element in the array?"
  },
  {
    "answer": "Both of the above",
    "choices": [
      "You should not use any of the JavaScript reserved keyword as variable name.",
      "JavaScript variable names should not start with a numeral (0-9)",
      "Both of the above",
      "None of the above"
    ],
    "question": "Which of the following is true about variable naming conventions in JavaScript?"
  },
  {
    "answer": "document.cookie = 'key1 = value1; key2 = value2; expires = date';",
    "choices": [
      "document.cookie = 'key1 = value1; key2 = value2; expires = date';",
      "browser.cookie = 'key1 = value1; key2 = value2; expires = date';",
      "window.cookie = 'key1 = value1; key2 = value2; expires = date';",
      "navigator.cookie = 'key1 = value1; key2 = value2; expires = date';"
    ],
    "question": "Which of the following is the correct syntax to create a cookie using JavaScript?"
  },
  {
    "answer": "indexOf()",
    "choices": ["getIndex()", "location()", "indexOf()", "None of the above"],
    "question": "Which built-in method returns the index of the first occurance within a string?"
  },
  {
    "answer": "toExponential()",
    "choices": ["toExponential()", "location()", "indexOf()", "toFixed()"],
    "question": "Which of the following function forces a number to display in exponential notation?"
  },
  {
    "answer": "replace()",
    "choices": ["concat()", "match()", "replace()", "search()"],
    "question": "Which of the following function is used to find a match between a regular expression and a string, and replaces the matched substring with a new substring?"
  },
  {
    "answer": "true",
    "choices": ["true", "false", "0", "error"],
    "function": "var foo = function foo() {\n    console.log(foo === foo);  \n};\nfoo();",
    "question": "What is printed in the console?"
  },
  {
    "answer": "false",
    "choices": ["true", "false", "NaN", "typeError"],
    "function": "(true + false) > 2 + true;",
    "question": "What is the result?"
  },
  {
    "answer": "2",
    "choices": ["0", "2", "11", "\"11\""],
    "function": "\"1\" - - \"1\";",
    "question": "What is the result?"
  },
  {
    "answer": "3,1",
    "choices": ["1,2", "1,3", "2,1", "2,3", "3,1", "3,2"],
    "function": "var x = 3;\n\nvar foo = {\n    x: 2,\n    baz: {\n        x: 1,\n        bar: function() {\n            return this.x;\n        }\n    }\n}\n\nvar go = foo.baz.bar;\n\nalert(go());\nalert(foo.baz.bar());",
    "question": "What is the order of values alerted?"
  },
  {
    "answer": "f, o, o",
    "choices": [
      "f, o, o",
      "TypeError",
      "['f', 'o', 'o']",
      "[][]['f', 'o', 'o']"
    ],
    "function": "[] + [] + 'foo'.split('');",
    "question": "What is the result?"
  }
]