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    • JavaScript Course | Practice Quiz-1

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    Question 1

    What is the function of the bind method
    • A
      bind an object to a common function, so that the function gives different result when its need
    • B
      Bind two different objects into one
    • C
      Both a and b
    • D
      None of the above

    Question 2

    What does high level mean in the context of javascript

    • A

      Developers don't need to manage resources manually. Everything happens Automatically

    • B

      The mechanism in js automatically removes unnecessary things from the memory

    • C

      Functions are simply treated as variables

    • D

      None of the above

    Question 3

    Which of the following are important features of javascript
    • A
      dynamic
    • B
      Single threaded
    • C
      Garbage collection
    • D
      All of the above

    Question 4

    The correct syntax of IIFE is
    • A
      (function (){ // Function Logic Here. })();
    • B
      function (){ // Function Logic Here. }();
    • C
      function (){ // Function Logic Here. }
    • D
      All of the above

    Question 5

    Which of the following is true about IIFE’s
    • A
      IIFEs have their own scope i.e. the variables you declare in the Function Expression will not be available outside the function.
    • B
      Similar to other functions IIFEs can also be named or anonymous, but even if an IIFE does have a name it is impossible to refer/invoke it.
    • C
      IIFEs can also have parameters
    • D
      All of the above

    Question 6

    What does IIFE stands for in javascript
    • A
      Invoked Immediately Functions Expressions
    • B
      Immediately Invoked Functions Expressions
    • C
      Both a and b
    • D
      None of the above

    Question 7

    What will be the output of the following code:

    let person = {

    name: "Alex",

    greet: function() {

    console.log("Hello, " + this.name);

    }

    };

    let greetFunc = person.greet;

    greetFunc();


    • A

      Hello, Alex

    • B

      Hello, undefined

    • C

      Error

    • D

      None of the above

    Question 8

    What will be the output of the following code:

    var geeks = { 
       name : "ABC", 
       printFunc: function(){ 
           console.log(this.name);
       } 
    }

    var printFunc2 = geeks.printFunc.bind(geeks);

    • A

      No output

    • B

      ABC

    • C

      Can’t say

    • D

      None of the above

    Question 9

    What will be the output of the following code: 

    let geeks = { 
       name : "ABC", 
       printFunc: function() { 
           console.log(this.name);
       } 
    }

    let printFunc2 = geeks.printFunc;

    printFunc2(); 

    • A

      No output

    • B

      ABC

    • C

      Can’t say

    • D

      None of the above

    Question 10

    What will be the output of the following code: 

    let geeks = { 
       name : "ABC", 
       printFunc: function() { 
           console.log(this.name);
       } 
    }

    let printFunc2 = geeks.printFunc;

    printFunc2(); 

    • A

      No output

    • B

      ABC 

    • C

      Can’t say

    • D

      None of the above

    There are 77 questions to complete.

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