toFixed(2) replacement. Gets around floating point division to produce a value from 0 to 1 for use as a percentage in a progress bar

toFixedReplacementTest.js

const totalLength = []
totalLength.length = 10000
totalLength.fill(1)
const values = []
totalLength.forEach((x, idx) => values.push(idx))


const toFixedReplacement = (val1, val2) => String(Math.min(val1/val2, 1)).substring(0,4)
const toFixed = (val1, val2) => Math.min(val1/val2,1).toFixed(2)

let toFixedResultCount = 0
let toFixedReplacementResultCount = 0 
values.forEach((v, idx) => {
  for (let x of values.slice(idx+1, values.length+1)){
    const replacement = toFixedReplacement(v,x)
    const toFixedOriginal = toFixed(v,x)
      if (parseFloat(replacement) >= 1.00){
        toFixedReplacementResultCount += 1
      }
      if (parseFloat(toFixedOriginal) >= 1.00){
        toFixedResultCount += 1
      }
  }
})

console.assert(toFixedReplacementResultCount === 0)
console.assert(toFixedResultCount > 0)
console.log(toFixedReplacementResultCount)
console.log(toFixedResultCount)