yakjuly's blog

1.at the beginning, use “eval”, eval is not safe if raise error, it only show something wrong in eval. we should find the real problem by self.

function dynamic_call(func, params){
var tmpArray = [], text = "window[func](";
for(var i=0;i

tmpArray.push("params[ "+ i + "]");
}
text += tmpArray.join();
text += ")"
alert(text)
return eval(text);
}
dynamic_call("alert", ["haha"])

2. another way use apply
apply like call. but apply support array as arguments

window["alert"].apply(window, ["haha"])

window["alert"].call(window, "haha")

// it also work like this

function Model(){

}
Model.alert = function(){
alert("model alert" + arguments[0])
}

Model["alert"].apply(Model, ["haha"])