ajax - JavaScript Ajax - Prevent Division by Zero Function

Question

I am building a calculator for a class using AJAX. I am having issues with my if else statement not working. It is supposed to display an alert, telling the user that they cannot divide by zero except the alert never shows. I am a beginner to Ajax, if anyone could provide guidance, it'd be greatly appreciated - I know it's probably something simple that I'm overlooking. Below is my function:

...

    }

    function divFunc() {

        var fn = "divide";
        getResult(fn);
        event.preventDefault();
        return;

        if (frmMain.txtBxSecNum.value == 0) {
            $('#alert').text("You cannot divide by zero!");
        }  
        else { (frmMain.txtBxFirstNum.value == 0) 
            $('#alert').text("You cannot divide by zero!");

        }
    }

...

标签： ajax

Answer 1

请去掉『return;』</p>

该语句不起作用，因为上面添加了return，所以不执行下面的语句