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Changing positivity/negativity of Numbers in a list in JavaScript
We are required to write a JavaScript function that takes in an array of positive as well as negative Numbers and changes the positive numbers to corresponding negative numbers and the negative numbers to corresponding positive numbers in place.
Example
The code for this will be −
const arr = [12, 5, 3, -1, 54, -43, -2, 34, -1, 4, -4]; const changeSign = arr => { arr.forEach((el, ind) => { arr[ind] *= -1; }); }; changeSign(arr); console.log(arr);
Output
The output in the console −
[ -12, -5, -3, 1, -54, 43, 2, -34, 1, -4, 4 ]
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