bootstrap-vue-3/src/utils/number.ts

Early (but lovely) implementation of Vue 3, Bootstrap 5 and Typescript

// Number utilities

//Validates a number is an integer. If not return NaN
export const toInteger = (value: number, defaultValue = NaN): number => {
  return Number.isInteger(value) ? value : defaultValue
}

export const stringToInteger = (value: string, defaultValue = NaN): number => {
  const integer = parseInt(value, 10)
  return isNaN(integer) ? defaultValue : integer
}

//Validates a number is a float. If not return NaN
// export const toFloat = (value: number, defaultValue = NaN): number => {
//   return !Number.isInteger(value) ? value : defaultValue
// }
export const toFloat = (value: number | string, defaultValue = NaN): number => {
  const float = parseFloat(value.toString())
  return isNaN(float) ? defaultValue : float
}
//Float given to a certain decimal place
export const toPercison = (val: number, precision: number) => toFloat(val).toPrecision(precision)