# JavaScript: Convert a positive number to negative number

## JavaScript Math: Exercise-29 with Solution

Write a JavaScript function to convert a positive number to a negative number.

Test Data :

console.log(pos_to_neg(15));

-15

**Sample Solution:**

**JavaScript Code:**

```
// Define a function named pos_to_neg that converts a positive number to its negative equivalent.
function pos_to_neg(num)
{
// Compute the absolute value of num using Math.abs(), then negate it.
return -Math.abs(num);
}
// Output the result of converting 15 to its negative equivalent to the console.
console.log(pos_to_neg(15));
```

Output:

-15

**Flowchart:**

**Live Demo: **

See the Pen javascript-math-exercise-29 by w3resource (@w3resource) on CodePen.

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