Minimum character onChange for Client Script

[Gioo]

Hi everyone,

I am getting acquaintance with Service Now Development and I have noticed that there are a few limitations with client-scripts. I am trying to create a minimum character requirement for the field additional comments but I am running into issues where the form does not allow submission after the first return false statement.

Would anyone have a solution on how I could achieve this solution to both Web and Portal?

function onSubmit() {
    //Minimum number of characters
    var charLength = 50;
    do {
        //Get value from form
        var currentValue = g_form.getValue('additional_comments');
        //Check if the value is less than 50 characters
        if (currentValue.length < charLength) {
            g_form.addErrorMessage("Incident description must be at least 50 characters long.");
            return false;
        } else {
        //If the character length is higher than or equal to 50, remove the error message
        g_form.clearMessages();
}

    } while (currentValue.length < charLength);
    //Allow form submission
    return true;
}

I am using the do-loop to continuously check the length and display an error until the user enters a value with at least 50 characters without asking the user to refresh the page. However, I am not sure if Service Now has limitations regarding this approach. 

The results are:

I really appreciate in advance for any tips or guidance regarding this question.

Regards,

Giovanni

[DYCM · Accepted solution]

Hi @Gioo ,

You can use onSubmit to check your input value before submitting the form, this is fine. I think the issue you are facing is caused by the field name. Instead of using "additional_comments", I think you meant to use "comments".

Please see the demo for you

function onSubmit() {

    var comments = g_form.getValue("comments");
    if (comments.length < 10) {
        g_form.addInfoMessage(comments);
        return false;
    }

}

[Gioo]

Hi @DYCM,

That has actually worked, foolish of me using the incorrect field name.

Thank you all for the help.