Conditional number formatting in Javascript

demo.js

function conditionalFormatting(value) {
  var input = Math.abs(value)
  
  var formatLegth = 2;
  if(input == 0) {
    formatLegth = 2;
  } else if(input > 0 && input <= 1) {
    formatLegth = 4;
  } else if(input > 1 && input <= 10) {
    formatLegth = 3;
  } else if(input > 10) {
    return value.toPrecision()
  }
  
  return value.toPrecision(formatLegth)
}

console.log(conditionalFormatting(0))
console.log(conditionalFormatting(0.00001))
console.log(conditionalFormatting(0.01))
console.log(conditionalFormatting(1))
console.log(conditionalFormatting(10))
console.log(conditionalFormatting(100))
console.log("-------------------------")
console.log(conditionalFormatting(0))
console.log(conditionalFormatting(-0.00001))
console.log(conditionalFormatting(-0.01))
console.log(conditionalFormatting(-1))
console.log(conditionalFormatting(-10))
console.log(conditionalFormatting(-100))