Please help me to resolve this issue, that would be a great support of yours to me !!!
var grad=msg.payload
if (grad>85)
{
msg.grade="S";
}
else if (grad<=85 && grad>80)
{
msg.grade="A";
}
else if (grad<=80 && grad>70)
{
msg.grade="B";
}
else if (grad<=70 && grad>60)
{
msg.grade="C"
}
else if (grad<=60 && grad>50)
{
msg.grade="D";
}
else if (grad<=50 && grad>40)
{
msg.grade="E";
}
else {
msg.grade="Fail";
}
return msg.grade;