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What is the output of the following JavaScript code?
var x = [1, 2, 3];
x.push(4);
console.log(x.length);
var x = [1, 2, 3];
x.push(4);
console.log(x.length);
- a)1
- b)2
- c)3
- d)4
Correct answer is option 'D'. Can you explain this answer?
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Most Upvoted Answer
What is the output of the following JavaScript code?var x = [1, 2, 3];...
Explanation:
The given code is a JavaScript code that declares a variable `x` and assigns an array `[1, 2, 3]` to it. Then, it uses the `push()` method to add the value `4` to the end of the array. Finally, it uses the `console.log()` function to print the length of the array `x`.
Code Explanation:
- Variable `x` is declared and assigned an array `[1, 2, 3]`.
- The `push()` method is used to add the value `4` to the end of the array `x`.
- The `length` property of the array `x` is printed using the `console.log()` function.
Output Explanation:
The `push()` method is used to add elements to the end of an array. In this case, the value `4` is added to the array `x`, thus increasing its length by 1.
Therefore, the output of the code will be `4`, as the length of the array `x` after adding the element `4` is 4.
Output:
```
4
```
The given code is a JavaScript code that declares a variable `x` and assigns an array `[1, 2, 3]` to it. Then, it uses the `push()` method to add the value `4` to the end of the array. Finally, it uses the `console.log()` function to print the length of the array `x`.
Code Explanation:
- Variable `x` is declared and assigned an array `[1, 2, 3]`.
- The `push()` method is used to add the value `4` to the end of the array `x`.
- The `length` property of the array `x` is printed using the `console.log()` function.
Output Explanation:
The `push()` method is used to add elements to the end of an array. In this case, the value `4` is added to the array `x`, thus increasing its length by 1.
Therefore, the output of the code will be `4`, as the length of the array `x` after adding the element `4` is 4.
Output:
```
4
```
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Community Answer
What is the output of the following JavaScript code?var x = [1, 2, 3];...
The push() method is used to add elements to the end of an array. In this case, it adds the number 4 to the array, resulting in a length of 4.
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What is the output of the following JavaScript code?var x = [1, 2, 3];x.push(4);console.log(x.length);a)1b)2c)3d)4Correct answer is option 'D'. Can you explain this answer?
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