How to calculate taking input from four fields in yii2 dynamic form

Question

I\'ve five fields- rate, qty. discount, cgst_percent, cgst_amount. I want to calculate cgst_amount. The formula should be -

cgst_amount = ((rate*qty - (rate*qty         


        

Answer 1

You meshed up with fields and variables, i have updated a script a bit :

function getGst(item) {
    var index  = item.attr("id").replace(/[^0-9.]/g, "");
    var qtyvar = ratevar = discvar = cgstpercentvar = cgstvar = 0;

    var id = item.attr("id");
    var myString = id.split("-").pop();

    quantity = index.concat("-qty");
    rate = index.concat("-rate");
    discount = index.concat("-discount");
    cgstRate = index.concat("-cgst_rate");

    temp1 = $("#productsales-"+quantity+"").val();
    temp2 = $("#productsales-"+rate+"").val();
    temp3 = $("#productsales-"+discount+"").val();
    temp4 = $("#productsales-"+cgstRate+"").val();

    if (isNaN(temp1) || temp1.length != 0) {
        qtyvar = temp1;
    }

    if (!isNaN(temp2) && temp2.length != 0) {
        ratevar = temp2;
    }

    if (isNaN(temp3) || temp3.length != 0) {
        discvar = temp3;
    }

    if (isNaN(temp4) || temp4.length != 0) {
        cgstpercentvar = temp4;
    }

    if (!isNaN(qtyvar) && !isNaN(ratevar) && !isNaN(discvar) && !isNaN(cgstpercentvar)) {
        cgstvar = ((((parseFloat(ratevar) * parseFloat(qtyvar)) - (parseFloat(ratevar) * parseFloat(qtyvar) * parseFloat(discvar))/100) * parseFloat(cgstpercentvar))/100).toFixed(2);
    }

    cgstField = "productsales-".concat(index).concat("-cgst_amount");

    $("#"+cgstField+"").val(cgstvar);

}