Comparison operators in Javascript - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to check if a is equal to b.

Javascript

if (a [1] b) {
  console.log("Equal");
}

Drag options to blanks, or click blank then click option'

A!=

B===

C>

D<

Attempts:

3 left

💡 Hint

Common Mistakes

Using '==' instead of '===' causes unexpected results.

Using '!=' instead of '==='.

The '===' operator checks if two values are equal and of the same type.

2fill in blank

medium

Complete the code to check if x is greater than 10.

Javascript

if (x [1] 10) {
  console.log("x is greater than 10");
}

Drag options to blanks, or click blank then click option'

A>

B<

C===

D<=

Attempts:

3 left

💡 Hint

Common Mistakes

Using '<' instead of '>' causes wrong condition.

Using '===' compares equality, not greater than.

The '>' operator checks if the left value is greater than the right value.

3fill in blank

hard

Fix the error in the comparison to check if num is not equal to 5.

Javascript

if (num [1] 5) {
  console.log("Not equal to 5");
}

Drag options to blanks, or click blank then click option'

A=

B===

C!==

D==

Attempts:

3 left

💡 Hint

Common Mistakes

Using '=' instead of '!=='.

Using '==' which checks equality, not inequality.

The '!==' operator checks if two values are not equal or not the same type.

4fill in blank

hard

Fill both blanks to check if age is between 18 and 30 (inclusive).

Javascript

if (age [1] 18 && age [2] 30) {
  console.log("Age is between 18 and 30");
}

Drag options to blanks, or click blank then click option'

A>=

B<

C<=

D>

Attempts:

3 left

💡 Hint

Common Mistakes

Using '>' instead of '>=' excludes 18.

Using '<' instead of '<=' excludes 30.

Use '>=' to check age is at least 18 and '<=' to check age is at most 30.

5fill in blank

hard

Fill all three blanks to create an object with keys as uppercase names and values as ages greater than 20.

Javascript

const result = people.reduce((acc, person) => {
  if (person.age [3] 20) {
    acc[[1]] = [2];
  }
  return acc;
}, {});

Drag options to blanks, or click blank then click option'

Aperson.name.toUpperCase()

Bperson.age

C>

Dperson.name

Attempts:

3 left

💡 Hint

Common Mistakes

Using '<' instead of '>' for age condition.

Using 'person.name' instead of uppercase.

Using wrong value for object property.

Use 'person.name.toUpperCase()' as key, 'person.age' as value, and '>' to check age greater than 20.