Question

我有以下职能:

var greet = function (name) {
    console.log("Hi " + name);
}

如果我有一句“自由(电子)”的话,是否可以将其转换为一种称为“私法”的功能?

Answer 1

eval() is your friend ! http://www.w3schools.com/jsref/jsref_eval.asp

Answer 2

你们,我,她和他们都仇恨。总是有另一种方式。

callMethod = function(def) {
    //all the variables are function references
    var approvedMethods = {greet: greet, love: love, marry: marry, murder: murder, suicide: suicide},
        split = def.split(/(/); //split[0] contains function name, split[1] contains (unsplit) parameters

    //replace last ) and all possible string detonators left-over
    split[1] = split[1].replace(/)$/,   ).replace(/[ "]/g,   ).split( , ); //contains list of params

    if (!approvedMethods[split[0]])
        return  No such function. ;

    approvedMethods[split[0]].apply(window, split[1]);
}
//Called like this:
callMethod("greet( eric )");

用任何东西取代窗口。

Answer 3

I m not sure I ve understood your question correctly, but are you looking for the eval() function?

eval("greet( eric )");

Answer 4

简便

eval("greet( eric )");

Answer 5

无<条码>

var greet = function (name) {
      console.log("Hi " + name);
    },
    greetstr =  greet("Eric") ;

var greeter = greetstr.split( (" );
window[greeter[0]]( greeter[1].replace(/)|"/g,  ) );

Bottom line 1: use eval with care
Bottom line 2: avoid constructions like this.

Just to be sure you have all possibilities @ your disposal: setTimeout(greetstr,0);
_{Mmmm, there is an eval in there somewhere ;)}

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