javascript 将字符串解析为数字javascript ES6

Posted 2021-05-03

const parseToInt = str => {
  let value = parseInt(str)
  if (!isNaN(value)) {
    return value
  }
  value = str.match(/[0-9]+\.?[0-9]*/)
  if (value && value[0]) {
    return +value[0]
  }
  return null
}