npm install return-function

npm install -g component

component install gamtiq/return-function

var ret = require("return-function");
...

define(["dist/return-function"], function(ret) {
    ...
});

<script type="text/javascript" src="dist/return-function.js"></script>
<script type="text/javascript">
    var ret = returnFunction;
    ...
</script>

var global = ret.returnGlobal();   // window in browser
var first = ret.returnFirstArg(1, 2, 3);   // 1
var second = ret.returnSecondArg(1, 2, 3);   // 2
var list = ret.returnArgList(1, 2, 3);   // [1, 2, 3]
var f = ret.getValueFunction("some value");
f(123);   // "some value"