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JavaScript

wei du
wei du
2,569 Points
Posted by wei du
wei du
2,569 Points

4/3

since 4/3 === (4/3) and the 4/3 is calculated in the beginning of the functions below:

function volSphere(radius){
  return (4/3) * Math.PI * Math.pow(radius, 3);
}

is it still necessary for the me to put parentheses around it? or it is just the best practice?

1 Answer

Liz Laffitte
Liz Laffitte
23,691 Points
Liz Laffitte
Liz Laffitte
23,691 Points

From MDN: "The grouping operator ( ) controls the precedence of evaluation in expressions."

You code returns the same results whether you use parenthesis or not, because the operation precedence would be the same in this case with or without them. If the operator had a lower precedence, you would need the parenthesis to ensure the calculation would be correct.

See also: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Operators/Operator_Precedence