将preg_match模式转换为javascript模式

Question

任何人都可以帮助将此php正则表达式模式转换为兼容js的模式？

$delimiter = "-"; 
$phone = "some number from the client"; 
var_dump(
    preg_match($phone,"|^([0-9]{1,3}".$delimiter."[0-9]{1,4}".$delimiter."[0-9]{4,12}(#[0-9]{1,4})?)$|") 
); 

感谢

Answer 1

var delimiter = "-", 
    phone = "8-989-895", 
    re = new RegExp("^[0-9]{1,3}"+delimiter+"[0-9]{1,4}"+delimiter+"[0-9]{4,12}(?:[0-9]{1,4})?$"); 
console.log(re.test(phone));