Possible Duplicate:
Javascript use variable as object name
How do I get JS to treat a string as a reference to a previously defined object? Simplified:
var myObject = new MyObject();
var myString = "myObject";
var wantThisToWork = myString.myproperty;
If the variable is in the global scope, you can access it as a property of the global object
var a = "hello world";
var varName = "a";
console.log( window[varName] ); // outputs hello world
console.log( this[varName] ); // also works (this === window) in this case
However, if it's a local variable, the only way is to use eval (disclaimer)
function () {
var a = "hello world";
var varName = "a";
console.log( this[varName] ); // won't work
console.log( eval(varName) ); // Does work
}
Unless you can put your dynamic variables into an object and access it like a property
function () {
var scope = {
a: "hello world";
};
var varName = "a";
console.log( scope[varName] ); // works
}
Function keyword in this case. stackoverflow.com/questions/36078655/…
eval. It's typically better to avoid it if possible.Function(onclickB.replace("p,q", "p,q,r")) this is working fine when onclickB is of the form return someFunc(2,'abc') but when I extract only the function name i.e. when onclickB = 'someFunc',passing it to Function(onclickB).call(....) does not call the function & gives an error..am I doing something stupid here?You can use the eval function.
eval(myString).myproperty
Careful with eval, though, if this is something the user is inputting, it will execute any javascript code!
eval if you don't have to
The only way, as it seems to me, would be to use eval. But as they say, eval is evil - but not in controlled environments. This is the way it is possible, but i don't recommend using eval, unless it is absolutely necessary.
var myObject = new MyObject();
var myString = "myObject";
var wantThisToWork = eval(myString).myproperty;
eval (If you're trying to access a local variable).Use eval()
var myObject = {};
myObject.myproperty = "Hello";
var myString = "myObject";
var wantThisToWork = eval(myString).myproperty;
myObjectinside another object used as a global namespace.var my_namespace = {}; my_namespace.myObject = new MyObject(); var myString = "myObject"; var itWorks = my_namespace[myString].myproperty