Question

43

Get return value after SetTimeout

rated 0 times [ 47] [ 4] / answers: 1 / hits: 15523 / 14 Years ago, sun, march 6, 2011, 12:00:00

I've just asked about calling functions by name, now I want to process return statement after SetTimeout:

function ECall(funcName, arg)

{

    command += (;

    for (var i=1; i<arguments.length; i++) 

    {

        command += ' + arguments[i] + ';

        if (i != arguments.length-1) command += ',';

    }

    command += );



    //var funcPtr = eval(funcName);

    //return funcPtr(arg); // This works, but I need SetTimeout



    setTimeout('window['' + funcName + '']' + command, 1000);

}

setTimeout works great, but I have to save return value of called function. When I write: setTimeout('alert(window['' + funcName + '']' + command + ')', 1000);
It alerts return value of function. How can I store it?

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catrinas

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2 Years ago

answered 14 Years ago shylaelisan · Accepted Answer

You don't need to use any of this string manipulation. Just pass a function reference to window.setTimeout(). To store the returned value of the function, simply assign it to a variable in the function you pass to window.setTimeout()

var savedValue;



function ECall(funcName)

{

    var args = Array.prototype.slice.call(arguments, 1);

    var func = window[funcName];



    window.setTimeout(function() {

        savedValue = func.apply(this, args);

    }, 1000);

}