How to refer to object properties dynamically?

[dcnguyen]

Let's say I have a Person object with properties age, name, and height I have a function called adjustProperty that takes in two paramaters, one is a reference to a Person's property and then to a value to change that property to...so if I do this:

Tom.adjustProperty("age", "20");

It changes Tom's age to 20...

So...how do I actually refer to the property inside the function call, if it is defined as so:

function adjustProperty(prop, val){

this.prop = val; //i take it, this does NOT work
}

 

[trollacious]

Try:

this[prop] = val;

You can access object properties and methods as an associative array as well as with the dot notation.

Lee