David Nguyen

Knowledge check - Conditionals and loops in Javascript

Knowledge check - Conditionals and loops in Javascript

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David Nguyen
·

2 min read

  1. Based on the following code, what will print out when the variable i has the value 3 ?

     if(i < 5) {
   console.log("Hello");
 } else {
   console.log("Goodbye");
 }

    • Hello

    • Goodbye

  2. Based on the following code, what will print out when the variable i has the value 1 ?

     if(i == 0 && i == 1) {
   console.log("Hello");
 } else {
   console.log("Goodbye");
 }

    • Hello

    • Goodbye

  3. How many times will the following code print the word 'Hello'?

     for (i = 0; i < 2; i++) {
     console.log("Hello");
 }

    • 1

    • 2

    • 3

    • 4

  4. How many times will the following code print the word 'Hello'?

     var i = 0;
 while(i < 3) {
   console.log("Hello");
   i++;
 }

    • 1

    • 2

    • 3

    • 4

  5. How many times will the following code print the word 'Hello'?

     for (i = 0; i < 2; i++) {
     for (var j = 0; j < 3; j++) {
         console.log("Hello");
     }
 }

    • 2

    • 3

    • 4

    • 6

  6. Based on the following code, what will print out when the variable i has the value 7 ?

     if(i <= 5) {
     console.log("Hello");
   } else if(i <= 10) {
     console.log("Goodnight");
   } else {
     console.log("Goodbye");
 }

    • Hello

    • Goodnight

    • Goodbye

  7. Based on the following code, what will print out when the variable i has the value 3 ?

     switch(i) {
     case 1:
       console.log("Hello");
       break;
     case 2:
       console.log("Goodnight");
       break;
     case 3:
       console.log("Goodbye");
       break;
 }

    • Hello

    • Goodnight

    • Goodbye

  8. Based on the following code, what will print out when the variable i has the value 3 ?

     if(i == 2 || i == 3) {
   console.log("Hello");
 } else {
   console.log("Goodbye");
 }

    • Hello

    • Goodbye

JavaScript