javascript正则表达式验证强制使用字母字符或字母数字字符，但不使用独立数字

Question

寻找一个可以验证这两种情况的 Javascript 验证正则表达式

• 字符或字符+数字
• 没有独立号码

谢谢

Answer 1

这个怎么样？

var tests = [
  'fsdfdsfASAS34csdfsd', 
  'dadsd', 
  '332'
]; // add here whatever you like to test

var re = /^(?=.*[a-z])[0-9a-z]+$/i; 
// with [0-9a-z]+ we test that string contains only alphanumericals,
// and with (?=.*[a-z]) we test that it has at least one [a-zA-Z] character present

for (var i = 0, l = tests.length; i < l; ++i) {
  if (re.test(tests[i])) {
    console.log(tests[i] + ' passed');
  }
  else {
    console.log(tests[i] + ' failed');
  }
}