How to restrict variable

[pramn]

Hello team , how do i restrict multiline variable with 10words in catalog item ?

[Allen Andreas]

Hello,

You can use Regex to accomplish this on the MVRS, such as here: https://www.servicenow.com/community/developer-forum/how-do-i-restrict-length-of-characters-of-varia...  -- but this is for character count, but the same can be done for words, such as: https://stackoverflow.com/questions/557695/limit-the-number-of-words-in-a-response-with-a-regular-ex... 

[Brian Lancaster]

On Change client script. You will need to something like this.

function onChange(control, oldValue, newValue, isLoading) {
    if (isLoading || newValue == '') {
        return;
    }

    //Type appropriate comment here, and begin script below
	var text = newValue.toString().Split(" ");//sprit sting into an array by space between words
	if (text.length > 10){//Check length of array is greater then 10
		alert("No more then 10 words can be in filed");
		g_form.clearValue("variable name");
	}
}

[Sumanth16]

Hi @pramn ,

function onChange(control, oldValue, newValue, isLoading) {
   if (isLoading || newValue == '') {
      return;
   }

	alert('Testing...');
   //Type appropriate comment here, and begin script below
   var charLimit = 250;
   var reasonForNomination = g_form.getValue('reason_for_nomination');

   if (reasonForNomination.length > charLimit){
		g_form.setValue('reason_for_nomination', reasonForNomination.substring(0, charLimit));
		g_form.addFieldMessage('reason_for_nomination', 'Maximum character limit exceeded. Please limit your input to ' + charLimit + ' characters.');
        return false;
   }else{
        g_form.clearMessages();
        return true;
   }
}

Please, don't forget to mark my answer as correct if it solves your issue or mark it as helpful if it is relevant for you!

Thanks & Regards,

Sumanth Meda