Question

I have this code, but I’m not sure how to convert it to jquery because of the check variable which I am using to see if the stuff inside the if statement happened at least once. gph_img_list is the name tag for lots of radio buttons.

    var check = false;
    for (var i=0; i < gph_img_list.length; i++) { 
        if (gph_img_list[i].value == var_gph_img.innerHTML) { 
            gph_img_list[i].checked = true;
            check = true;               
            break;
        }
    }
    if (!check) {
        var_gph_img.innerHTML = "";
    }

Answer 1

Use the filter function…

​var check = $(gph_img_list).filter(function (index, element) {
    return element.value === var_gph_img.innerHTML;
}).first().attr("checked", true).length > 0;

if (!check) { var_gph_img.innerHTML = ""; }

Here is a fiddle where there is no checkbox checked because the text doesn’t match. (Change the ‘a’ in the div to x, y or z to see the difference)

Here is a fiddle where there is a checkbox checked because the text does match.