ServiceNow replace start with "Ref:MSG"+*** string
例如:
替换以 "Ref:MSG" 开头的后面加35个字符的一段字符串。
var nIncident = new GlideRecord('incident');
nIncident.initialize();
var body = email.body_text;
var a = "Ref:MSG";
var indexOfA = body.lastIndexOf(a);
if(indexOfA != -1)
{
var sWatermark = body.substring(indexOfA,indexOfA+35);
var reg=new RegExp(sWatermark,"g");
var NoWatermarkBody = body.replace(reg,'');
}else
{
var NoWatermarkBody = body;
}