‫آموزش فایرباگ - #4 - JavaScript Development

<input type="button" onclick="startTrace('Some Text')" value="startTrace" />
<input type="button" onclick="startError()" value="test Error" />

<script type="text/javascript">
    function startTrace(str) {
        return method1(100, 200);
    }
    function method1(arg1, arg2) {
        return method2(arg1 + arg2 + 100);
    }
    function method2(arg1) {
        var var1 = arg1 / 100;
        return method3(var1);
    }
    function method3(arg1) {
        console.trace();
        var total = arg1 * 100;
        return total;
    }

    function testCount() {
        // do something
        console.count("testCount() Calls Count .");
    }

    function startError() {
        testError();
    }

    function testError() {
        var errorObj = new Error();
        errorObj.message = "this is a test error";
        console.exception(errorObj);
    }

    function testFunc() {
        var t = 0;
        for (var i = 0; i < 100; i++) {
            t += i;
        }
    }
</script>