JS中关于正则的巧妙操作

var msg="dsada[emoji:37]dsadas[emoji:3900]法拉綏芬河";
function fetch(msg) {
  var match, result = msg,
    reg = /\[emoji:\d+\]/g,
    emojiIndex,
    totalEmojiNum = 45;
  while (match = reg.exec(msg)) {
    console.log(match[0]);//[emoji:37],[emoji:3900]
    emojiIndex = match[0].slice(7, -1);
    console.log(emojiIndex);//37,3900
    if (emojiIndex > totalEmojiNum) {
      result = result.replace(match[0], '[X]');
    } else {
      result = result.replace(match[0], '<img src="/UploadFiles/2021-04-02/eomji_' + emojiIndex + '.gif">

总结
以上所述是小编给大家介绍的JS中关于正则的巧妙操作，希望对大家有所帮助，如果大家有任何疑问请给我留言，小编会及时回复大家的。在此也非常感谢大家对网站的支持！