try:
<script>
//目前手机多数为11位
var a = "13666889999";
var pattern = /^(136|130|139|135|137|133|138)(\d){8}$/
alert(pattern.test(a))
</script>
<script>
//目前手机多数为11位
var a = "13666889999";
var pattern = /^(136|130|139|135|137|133|138)(\d){8}$/
alert(pattern.test(a))
</script>
<script>
//目前手机多数为11位
var a = "13666889999";
var pattern = /^(136|130|139|135|137|133|138)(\d){8}$/
alert(pattern.test(a))
</script>