如何让 div 在 javascript 中显示？

Question

I have this script on dynamic radio buttons... On load the divs display, great. One is automatically checked, great. If I click the other radio button the divs hide, great. When I click back to the main radio button to show the divs again the divs don't reappear.

How do I get the divs to reappear (show)?????

 function hide() {
        var ele = document.getElementById("hideRow");
        var coup = document.getElementById("coup");
        if ("hideRow") {
            ele.style.display = "none";
            coup.style.display = "none";
        } else {
            ele.style.display = "block";
            coup.style.display = "block";
        }
    }

Answer 1

Try:

function hide() {
    var ele = document.getElementById("hideRow");
    var coup = document.getElementById("coup");
    if (ele.style.display == "block") {
        ele.style.display = "none";
        coup.style.display = "none";
    } else {
        ele.style.display = "block";
        coup.style.display = "block";
    }
}

Answer 2

This is always true:

if ("hideRow") {
    // Always executes
}

So, you only ever get to the if-block. You need to change the conditional on your if-statement.

Answer 3

if (ele.style.visibility == 'visible';) {
        ele.style.visibility = 'hidden';
        coup.style.visibility = 'hidden';
    } else {
        ele.style.visibility = 'visible';
        coup.style.visibility = 'visible';
    }

I may have entirely missed the mark and not understood what your trying to do, but that's the way I'd do it (I think - you may be trying to do something else).