javascript - 這樣用正規驗證伺服器位址跟連接埠號碼的格式是否正確格式，求教！

Question

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Answer 1

沒看到你的正規則，但可以這麼粗略的校驗下

var reg = /^[\d]{1,3}.[\d]{1,3}.[\d]{1,3}.[\d]{1,3}$/;
var regp = /^[\d]+$/;
var s = ['192.168.20.1.1', '192.168.20.1.1.1', '192.168.20.1a', '192.168.20.1', '192.168.20.10000'];
var p = [8080, 0, 333, 'a', '1+'];
for (let i = 0, len = s.length; i < len; i++) {
  console.log('ip', s[i], reg.test(s[i]))
}
for (let i = 0, len = p.length; i < len; i++) {
  console.log('port', p[i], regp.test(p[i]))
}