Question

i am suing a function in which i try to limit textarea length but on one condition i am getting the above mentioned error. Please tell me what i am doing wrong?

 function limitTextArea(element, limit) {

    var $textArea = $(element);    
    ($textArea).keypress(function(event){

        if ($textArea.val().length == limit) {
            event.preventDefault();
        } else if ($textArea.val().length > limit) {

            // Maximum exceeded
            $textArea.val() = $textArea.val().substr(0, limit);
        }

    }); //end of keypress

} //end of function()

The line

$textArea.val() = $textArea.val().substr(0, limit);

give me error that invalid assignment left-hand side. Why i am getting that?

Thanks

Answer 1

$textArea.val() is a function so you don’t want to assign a string to it.

The following code will assign the value to $textArea:

$textArea.val($textArea.val().substr(0, limit));