How to disable JavaScript alert in lime survey validation [duplicate]

Question

While filling the questionnaire a JavaScript alert occurs when a mandatory question or validation error found. After alert a read message displayed which looks good but alert annoys. Is there any way to disable alert throughout the Survey?

In Lime survey it is different to place code for java script.

Answer 1

Try this:

var newAlert = alert; // Preserving alert.

// Overriding the default alert.
alert = function(str){
    return;
}