How to modify the data interface in the event before-CodePudding

As follows:
Var event1=FreeRegion. Event_test ()
Event1. Watch (function (the error, the result) {
if (! The error) {
$(" # info "). The HTML (result. The args. The name + '(' + result. The args. The age + years old)');
} else {
Var er=error
The console. The log (' err: + er)
}
})

Events in front of the web but I need to return to change the value of the data in the event a similar $(" # info "), and this word will be an error, such as can't use how do I modify the front-end data? The front is I use VUE this should have no effect