Question

Write a function that takes in a number and either a + or a -. The function should return the consecutive number either before (+) or after (-) the number.

This is in "JavaScript"?

Answer 1

A JavaScript function called getConsecutiveNumber is provided that takes a number and a '+' or '-' sign, returning the consecutive number accordingly. The function increments the number by 1 for a '+' sign and decrements by 1 for a '-' sign.

Step-by-step explanation:

We can write a function in JavaScript that accepts a number and a '+' or '-' sign. This function will return the consecutive number based on the supplied sign. Taking the concepts of addition and subtraction into consideration, we can increase or decrease the input number accordingly.

To address the problem, we'll follow these steps:

1. Define a function called getConsecutiveNumber that takes two parameters: number and sign.
2. Check the value of the sign parameter.
3. If the sign is '+', return the number incremented by 1.
4. If the sign is '-', return the number decremented by 1.

Here is the JavaScript function:

function getConsecutiveNumber(number, sign) {
if (sign === '+') {
return number + 1;
} else if (sign === '-') {
return number - 1;
} else {
return undefined; // For invalid sign }}
With this function, if you input a number with '+' it will return the next consecutive number, and with '-' it will return the previous consecutive number. The operation ensures compliance with the rules of adding and subtracting numbers, as provided in the reference details.