问如何将给定的日期和时间转换为javascript中的划时代时间？

EN

function calculateEpoch(){ 
var date = '11/1/2019' //obtained from ui
    var time = '11:00' //obtained from ui
    var date1 = date +" " + time; // <---add space here

    var someDate = new Date(date1);
    console.log("someDate : ",someDate) //getting error like Invalid Date
    someDate1 = someDate.getTime();
    console.log("someDate : ",someDate1) //getting error like someDate1 is not defined
 return someDate1 ;
}

function calculateEpoch(){ 
    var date = '11/1/2019' //obtained from ui
    var time = '11:00' //obtained from ui
    var date1 = `${date} ${time}`; // add a space in between the date and time,
    // your date1 was invalid because it 11/1/2019:11:00

    var someDate = new Date(date1);
    console.log("someDate : ",someDate) //getting error like Invalid Date
    someDate1 = someDate.getTime();
    console.log("someDate : ",someDate1) //getting error like someDate1 is not defined
    return someDate1 ;
}

function calculateEpoch(){ 
    var date = '11/1/2019'; //obtained from ui
    var time = '11:00'; //obtained from ui
    var date1 = date + " " + time;

    var someDate = new Date(date1);
    console.log("someDate : ", someDate) //getting error like Invalid Date
    someDate1 = someDate.getTime();
    console.log("someDate : ", someDate1) //getting error like someDate1 is not defined
    return someDate1;
}
calculateEpoch();