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What will be the output of the following code?
var arr = [1, 2, 3];
arr.pop();
console.log(arr.length);
var arr = [1, 2, 3];
arr.pop();
console.log(arr.length);
- a)0
- b)1
- c)2
- d)3
Correct answer is option 'C'. Can you explain this answer?
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Most Upvoted Answer
What will be the output of the following code?var arr = [1, 2, 3];arr....
The 'pop()' method removes the last element from the array, reducing its length to 2.
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Community Answer
What will be the output of the following code?var arr = [1, 2, 3];arr....
Output Explanation:
In the given code, we have an array `arr` containing the elements [1, 2, 3]. The `pop()` method is used to remove the last element from the array.
Execution:
- Initially, the array `arr` contains the elements [1, 2, 3].
- The `pop()` method is called on the array `arr`, which removes the last element (3) from the array.
- After executing `arr.pop()`, the array `arr` becomes [1, 2].
- Finally, the `console.log(arr.length)` statement is executed, which prints the length of the array `arr`.
Output:
The output of the code will be:
c) 2
Explanation:
The `pop()` method removes the last element from an array and returns that element. In this case, the last element (3) is removed from the array `arr`.
After removing the element, the array `arr` contains the elements [1, 2]. The `length` property of an array returns the number of elements in the array.
Therefore, when we print `arr.length`, it will output the length of the array `arr`, which is 2.
In the given code, we have an array `arr` containing the elements [1, 2, 3]. The `pop()` method is used to remove the last element from the array.
Execution:
- Initially, the array `arr` contains the elements [1, 2, 3].
- The `pop()` method is called on the array `arr`, which removes the last element (3) from the array.
- After executing `arr.pop()`, the array `arr` becomes [1, 2].
- Finally, the `console.log(arr.length)` statement is executed, which prints the length of the array `arr`.
Output:
The output of the code will be:
c) 2
Explanation:
The `pop()` method removes the last element from an array and returns that element. In this case, the last element (3) is removed from the array `arr`.
After removing the element, the array `arr` contains the elements [1, 2]. The `length` property of an array returns the number of elements in the array.
Therefore, when we print `arr.length`, it will output the length of the array `arr`, which is 2.
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What will be the output of the following code?var arr = [1, 2, 3];arr.pop();console.log(arr.length);a)0b)1c)2d)3Correct answer is option 'C'. Can you explain this answer?
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