I want my value modified to always have three decimal digits

Question

My logic calculates and returns a value based on user input, I want to modify that value to always have three decimal digits

For example;

1 to 1.000
1.02 to 1.020
2.000004 to 2.000
2.5687 to 2.569

How would I achieve it on javascript?

Answer 1

You can use Number().toFixed() to do it

const formatVal = (val,precise = 3) =>{
  return Number(val).toFixed(precise)
}

console.log(formatVal(1,3))
console.log(formatVal(1.02,3))
console.log(formatVal(2.000004,3))
console.log(formatVal(2.5687))
console.log("-----------------")
console.log(formatVal(2.5687,2))

Answer 2

You can do something like this,

let newNum  = Number(1.34).toFixed(3);
console.log(newNum);