Change preference setting by script

ASHOK KUMAR wrote: And also its anything possible to change all preferences by script?

This has been asked, and answered, before: Indesign Preferences

Here is a script I use to set my preference for appearance of black. It runs from the startup.

#targetengine "session"
app.scriptPreferences.version = 5.0; 
main();
function main(){
    var myEventListener = app.addEventListener("afterOpen", opaqueBlack, false);
    
}
///////////////////////////////////////////////
function opaqueBlack(myEvent){
    //var myDocument = myEvent.parent;
    var myDocument=app.documents[0];
myDocument.documentPreferences.overprintBlack= false;
     
}