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Consider the following JavaScript code:
var calculate = function(a, b, operation) {
  return operation(a, b);
};
function add(a, b) {
  return a + b;
}
var result = calculate(3, 4, add);
console.log(result);
What will be the output of the above code?
  • a)
    3
  • b)
    4
  • c)
    7
  • d)
    This code will produce an error
Correct answer is option 'C'. Can you explain this answer?
Most Upvoted Answer
Consider the following JavaScript code:var calculate = function(a, b, ...
Explanation:
- The given code defines a function called `calculate` which takes three parameters: `a`, `b`, and `operation`.
- The `calculate` function returns the result of calling the `operation` function with `a` and `b` as arguments.
- The code also defines a function called `add` which takes two parameters: `a` and `b`.
- The `add` function returns the sum of `a` and `b`.
- Lastly, the code calls the `calculate` function with the arguments `3`, `4`, and the `add` function.
- The result of this calculation is then printed to the console using `console.log`.

Execution:
1. The `calculate` function is called with the arguments `3`, `4`, and the `add` function.
2. Inside the `calculate` function, the `operation` function (in this case, `add`) is called with `a` and `b` as arguments.
3. The `add` function calculates the sum of `a` and `b`, which is `3 + 4 = 7`.
4. The `calculate` function returns the result of the `add` function, which is `7`.
5. The returned result is stored in the `result` variable.
6. The `console.log` function prints the value of the `result` variable to the console.
7. Therefore, the output of the code will be `7`.

Conclusion:
The output of the given JavaScript code will be `7`.
Free Test
Community Answer
Consider the following JavaScript code:var calculate = function(a, b, ...
The code defines a function expression named "calculate" that takes three parameters: "a", "b", and "operation". The "operation" parameter is expected to be a function. In this case, the "add" function is passed as an argument to "calculate". The "calculate" function then calls the "operation" function with the values of "a" and "b". So, "calculate(3, 4, add)" is equivalent to "add(3, 4)", which returns the sum of 7. The result is then logged to the console.
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Consider the following JavaScript code:var calculate = function(a, b, operation) { return operation(a, b);};function add(a, b) { return a + b;}var result = calculate(3, 4, add);console.log(result);What will be the output of the above code?a)3b)4c)7d)This code will produce an errorCorrect answer is option 'C'. Can you explain this answer?
Question Description
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