HTML Form Validation: Additional Features Flashcards

1
Q

JavaScript Form Validation

A
function validateForm() {
    var x = document.forms["myForm"]["fname"].value;
    if (x == "") {
        alert("Name must be filled out");
        return false;
    }
}
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2
Q

HTML Form Example

A

Name:

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3
Q

Do you think you like the “placeholder” option that puts the example in the field itself or the prompt off to the right of the field better?

A

placeholder

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4
Q

readonly

A
  • The readonly attribute is a boolean attribute.
  • When present, it specifies that an input field is read-only.
  • A read-only input field cannot be modified (however, a user can tab to it, highlight it, and copy the text from it).
  • The readonly attribute can be set to keep a user from changing the value until some other conditions have been met (like selecting a checkbox, etc.). Then, a JavaScript can remove the readonly value, and make the input field editable.
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