Day of the week

Hi Folks, I am trying to write an if statement and not sure of the syntax. Basically I want to say

If DAY of DATE VALUE in the DATE PICKER is MONDAY then do this…

I am just using a standard date picker. Thanks in advance.

$w.onReady(() => {
    $w('#dataPicker').onChangeEvent(event => {
        const date = new Date(event.target.value);
        const dayOfTheWeek = date.getDay();//Sunday is 0, Saturday is 6.
        if(dayOfTheWeek === 3/*if Wednesday*/){
            //do something...
        }
    })
})

Thanks so much bud