Vue and JS retain decimal places and convert them to percentages

toFixed MDN

The toFixed() method uses fixed-point notation to format a number.

Keep two decimal places to round

Export function NumFilter (value) {let realVal = parseFloat(value).tofixed (2) return realVal}Copy the code

Leave two decimal places unrounded

Export function numFilter (value) {let tempVal = parseFloat(value). ToFixed (3) let realVal = tempVal.substring(0, tempVal.length - 1) return realVal }Copy the code

3. Convert decimals to percentages (keep two decimals and round them off)

export function ChangeDecimalToPercentage(data) {
  let data1 = (data*100).toFixed(2)+"%"
  return data1
}
Copy the code

Note: this must be used when converting decimals to percentages. ToFixed () retains the required number of digits, otherwise it defaults to many more decimals.