jQuery类型错误：“ TypeError：未定义colorval”

Question

Here is console screenshort

Plunker Link Here

var color = '';
var xml = '';

function hexc(colorval) {
    var parts = $(colorval).match(/^rgb\((\d+),\s*(\d+),\s*(\d+)\)$/);
    delete(parts[0]);
    for (var i = 1; i <= 3; ++i) {
        parts[i] = parseInt(parts[i]).toString(16);
        if (parts[i].length == 1) parts[i] = '0' + parts[i];
    }
    color = '#' + parts.join('');
}
$("#mcor tr").each(function() {
    // alert("1");
    xml += '<mcor_info>';
    var td_len = $("#mcor tr td").length;
    //  alert("2");
    for (var b = 0; b <= td_len; b++) {
        //  var index = $('th').eq(b).text();
        xml += '<mcor' + b + '>';
        var tx = $("#mcor tr ").find("td").eq(b).css('backgroundColor');
        hexc(tx);
        xml += color;
        xml += '</mcor' + b + '>';
    }
    xml += '</mcor_info>';
});

I am getting this error: Type Error: colorval is undefined . I found a couple of other examples, tried to solve my error but didn't succeed:

JQuery Type-error e is undefined issue

Uncaught TypeError: undefined is not a function while using jQuery UI

Where is my mistake?

Answer 1

can you upload the code in jsfiddle, please? I suspect that the problem could be on the line "var tx = $("#mcor tr ").find("td").eq(b).css('backgroundColor');"

probably it is not getting the result that you think

UPDATE

what happen if you use that:

var parts = colorval.match(/^rgb\((\d+),\s*(\d+),\s*(\d+)\)$/);

UPDATE #2

you can check the code in the following link:

https://plnkr.co/edit/g3boR5yHO895fz76EIKg

like you can see if I pass a rgb directly to the function it is working fine, that mean that the problem is the "tx" object, that means that you need convert that to string

hexc(String(tx));