Convert Fraction String to Decimal?

Question

I\'m trying to create a javascript function that can take a fraction input string such as \'3/2\' and convert it to decimal—either as a string \'1.5\'

Answer 1

const fractionStringToNumber = s => s.split("/").map(s => Number(s)).reduce((a, b) => a / b);

console.log(fractionStringToNumber("1/2"));
console.log(fractionStringToNumber("1/3"));
console.log(fractionStringToNumber("3/2"));
console.log(fractionStringToNumber("3/1"));
console.log(fractionStringToNumber("22/7"));
console.log(fractionStringToNumber("355 / 113"));
console.log(fractionStringToNumber("8/4/2"));

console.log(fractionStringToNumber("3")); // => 3, not "3"