Question

Hello so i’m trying to trim the white spaces when the user enter spaces he get an error explaning that he should enter valid chars but if he used: ' test ' the same value is entered in the database do i need to trim that again in javascript ?

function validateForm()
{
    if(trim(document.insert.aname.value) ==="")
    {
      alert("Animal should have a name");
      document.insert.aname.focus();
      return false;
    }
}
function trim(value) {
    return value.replace(/^\s+|\s+$/g,"");
}

please can you help ?
the input page is .JSP

Answer 1

You’re not actually trimming the input. You want this:

//store the input in a variable
var nameInput = document.insert.aname

function validateForm() {
    //Get the trimmed name
    var animalName = trim(nameInput.value)

    if(animalName) {
        //Update the form with the trimmed value, just before the form is sent
        nameInput.value = animalName
    }
    else {
         //Trimmed value is empty
         alert("Animal should have a name");
         nameInput.focus();
         return false;
    }
}

function trim(value) {
    return value.replace(/^\s+|\s+$/g,"");
}