校验数字是否有效的11位手机号

function isValidPhoneNum(value: string) {
  return /^[1][3,4,5,6,7,8,9][0-9]{9}$/.test(value)
}

手机号中间4位掩码

function maskPhoneNum(phone: string, space = false) {
  if (!phone) {
    return ''
  }
  const reg = /(\d{3})\d{4}(\d{4})/
  return phone.replace(reg, space ? '$1 **** $2' : '$1****$2')
}

数字千分位分隔，支持小数点

function thousands(num: number) {
  const str = num.toString()
  const reg =
    str.indexOf('.') > -1 ? /(\d)(?=(\d{3})+\.)/g : /(\d)(?=(?:\d{3})+$)/g
  return str.replace(reg, '$1,')
}

URL

获取链接参数，支持query和hash

// 使用 URLSearchParams
function getURLParameter(name: string): string | null {
    const urlParams = new URLSearchParams(window.location.search);
    if (urlParams.has(name)) {
        return urlParams.get(name);
    } else {
        const hashParams = new URLSearchParams(window.location.hash.replace('#?', ''));
        return hashParams.get(name);
    }
}
// 使用正则表达式
function getURLParameter(name: string): string | null {
    let match = window.location.search.match(new RegExp('[?&]' + name + '=([^&]+)'));
    if (match) {
        return decodeURIComponent(match[1]);
    } else {
        match = window.location.hash.match(new RegExp('[#?&]' + name + '=([^&]+)'));
        if (match) {
            return decodeURIComponent(match[1]);
        }
    }
    return null;
}

向url拼接查询参数字符串

function appendQuery(url: string, extraQueryParams: Record<string, string | number>, appendPos: 'hash' | 'query' = 'query'): string {
  const extraQuery = Object.entries(extraQueryParams)
    .map(([key, value]) => `${encodeURIComponent(key)}=${encodeURIComponent(value.toString())}`)
    .join('&');

  const [mainPart, hashPart] = url.split('#', 2);

  if (appendPos === 'hash' && hashPart) {
    const hashQueryIndex = hashPart.indexOf('?');
    if (hashQueryIndex >= 0) {
      // If there are already query parameters in the hash part, append the new ones
      return `${mainPart}#${hashPart.slice(0, hashQueryIndex + 1)}${extraQuery}&${hashPart.slice(hashQueryIndex + 1)}`;
    } else {
      // If there are no query parameters in the hash part, add the new ones
      return `${mainPart}#${hashPart}?${extraQuery}`;
    }
  } else {
    const mainQueryIndex = mainPart.indexOf('?');
    if (mainQueryIndex >= 0) {
      // If there are already query parameters in the main part, append the new ones
      return `${mainPart.slice(0, mainQueryIndex + 1)}${extraQuery}&${mainPart.slice(mainQueryIndex + 1)}`;
    } else {
      // If there are no query parameters in the main part, add the new ones
      return `${mainPart}?${extraQuery}`;
    }
  }
}

UA

获取iOS的版本

function getIOSVersion() {
  const ua = navigator.userAgent
  const match = ua.match(/(iPhone\sOS)\s([\d_]+)/)
  return match ? match[2].replace(/_/g, '.') : ''
}

function getIOSMajorVersion() {
  const version = getIOSVersion()
  return version ? parseInt(version, 10) : 0
}