Need to minimize Javascript Code using operator

Question

Here is my Javascript Code. Need to minimize it using OR operators into few lines rather than this else if statements. Please help.

Previous Function:

//numbers

 function displayvalue(value)
{
    if (e.key === "0") {
        res.value += "0";
    } else if (e.key === "1") {
        res.value += "1";
    } else if (e.key === "2") {
        res.value += "2";
    } else if (e.key === "3") {
        res.value += "3";
    } else if (e.key === "4") {
        res.value += "4";
    } else if (e.key === "5") {
        res.value += "5";
    } else if (e.key === "6") {
        res.value += "6";
    } else if (e.key === "7") {
        res.value += "7";
    } else if (e.key === "7") {
        res.value += "7";
    } else if (e.key === "8") {
        res.value += "8";
    } else if (e.key === "9") {
        res.value += "9";
    }

}

Problematic Function:

function displayvalue(value) {
    if ((e.key === "0") || (e.key === "1") || (e.key === "2")(e.key === "3") || (e.key === "4") || (e.key === "5") || (e.key === "6") || (e.key === "7") || (e.key === "8") || (e.key === "9")) {
        res.value += "1";
        res.value += "2";
        res.value += "3";
        res.value += "4";
        res.value += "5";
        res.value += "6";
        res.value += "7";
        res.value += "8";
        res.value += "9";
    }