过滤从联系表单7发送空白消息

Question

I want to integrate this code to my contact form 7 in additional setting:

on_sent_ok: " if (document.getElementById("textArea1").value.trim() == '') {alert("no Message");}"

the logic is supposed to be like this:

if textarea1 == " " alert message not to send the message else send the message

And in putting my code: when I tried to put some " " blank spaces and sent it , a message:

"your message sent successfully" - appeared after the alert pop up message("no Message") and then check my email the blank spaces was sent.I am planning not to send some blank spaces when someone attempt to send blank spaces. How could I solve this problem?How to filter when blank spaces only sent?

Answer 1

Using jQuery you can trim your space by use of $.trim() function.

if($.trim($("#textArea1").val()) == "")
{
  alert(" message not to send the message");
}
else 
{
  alert("Message sent successfully");
}