我是regex的新手。任何人都可以指向或建议使用正则表达式来验证完全限定的域名(如此 - mysite.com)或没有协议检查的url验证器正则表达式吗?
答案 0 :(得分:0)
这应该有效:
正则表达式:
/^([a-z0-9-]+\.[a-z0-9]{2,}$)/gm
输入:
mysite.com
test.net
testing.-com
camels.com.net
输出:
mysite.com
test.net
JavaScript代码:
const regex = /^([a-z0-9-]+\.[a-z0-9]{2,}$)/gm;
const str = `mysite.com
test.net
testing.-com
camels.com.net`;
let m;
while ((m = regex.exec(str)) !== null) {
// This is necessary to avoid infinite loops with zero-width matches
if (m.index === regex.lastIndex) {
regex.lastIndex++;
}
// The result can be accessed through the `m`-variable.
m.forEach((match, groupIndex) => {
console.log(`Found match, group ${groupIndex}: ${match}`);
});
}