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Can't Eval js code with yield

Here's my simplified code:

<html>
<body>
    <button onclick="testRun()">Click me</button>
    <script type="application/javascript" language='javascript1.7'>
        function testRun() {
            var txt = 'var func = function*() {console.log("hi");';
            txt += 'yield true;';
            txt += 'console.log("bye");';
            txt += 'yield false;}';
            eval(txt);
            func().next();
            func().next();
        }
    </script>
</body>
</html>

I keep getting the following error:

1.html: 1 Uncaught SyntaxError: Unexpected token true

I've seen the following examples:

http://forum.unity3d.com/threads/eval-yield-waitforseconds-javascript.248463/

http://unixpapa.com/js/sleep.html

but couldn't do it myself.

Can anyone point me in the right direction?

thank

edit: Thanks for the quick answers, but I ran into a new problem: while using the func () function. next (); twice i keep getting “hello” “hello” instead of “hello” goodbye ”can anyone help me figure out what i am doing wrong?

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1 answer


Your code will work if you change it to:



    function testRun() {
        var txt = 'function* func() {console.log("hi");';
        txt += 'yield true;';
        txt += 'console.log("bye");';
        txt += 'yield false;}';
        eval(txt);
        var gen=func();
        gen.next();
        gen.next();
    }
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