Function formatNumber

g2-ssr/charts/utils.js:8–34

* 为数值添加千分符，保持原有小数位数不变 * 纯字符串处理，避免精度丢失 * 支持：正负整数、小数、字符串格式的数值

(value)

 * 支持：正负整数、小数、字符串格式的数值
 */
function formatNumber(value) {
  if (value === null || value === undefined || value === '') {
    return value
  }

  let str
  if (typeof value === 'string') {
    str = value.trim()
  } else if (typeof value === 'number') {
    str = String(value)
  } else {
    return value
  }

  const match = str.match(/^([+-])?(\d+)(\.(\d+))?$/)
  if (!match) {
    return value
  }

  const sign = match[1] || ''
  const intPart = match[2]
  const decPart = match[3] || ''

  const formattedInt = intPart.replace(/\B(?=(\d{3})+(?!\d))/g, ',')

  return sign + formattedInt + decPart
}

function getAxesWithFilter(axes) {
  const groups = {