How to call .get() method on this JavaScript array?

Question

First, look at this screenshot:

Console

I would like to call .get("p" + number) on this, but however I try to do this I get undefined or this:

Global.refPatients["_object"].get(p151833309)

Uncaught TypeError: Global.refPatients._object.get is not a function
    at <anonymous>:2:31
    at Object.InjectedScript._evaluateOn (<anonymous>:895:140)
    at Object.InjectedScript._evaluateAndWrap (<anonymous>:828:34)
    at Object.InjectedScript.evaluate (<anonymous>:694:21)

`Global.refPatients["_object"].p151833309`? There is no built-in `get` method on objects, and `p151833309` isn’t a variable. — Ry-, Jul 18 '15 at 19:11
What is not a function? There is no function being called there, so it’s impossible for you to get the same error. — Ry-, Jul 18 '15 at 19:12
First, what are you trying to do? What do you think the (non-existent) `get()` method should do? Having asked that, it looks like you're trying to retrieve value held in that object key, so perhaps you want: `Global.refPatients.p151833309`? — David Thomas, Jul 18 '15 at 19:13
Yup, sorry, I've added. get() at the end, your line works, but how do i place a var in place of pp151833309 ? I would like to pass that object to a variable.. — Michał Gątkowski, Jul 18 '15 at 19:15

score 1 · Accepted Answer · answered Jul 18 '15 at 19:18

1

As pointed out in the comments, objects don't have a get method. If you want to access the value of a particular property, you can just reference the property with either the bracket or the dot notation (see Property Accessors on MDN):

//dot notation:
 Global.refPatients["_object"].p151833309;

//bracket notation - needed if you want to get 15183309 from a variable:
Global.refPatients["_object"]["p"+151833309];

answered Jul 18 '15 at 19:18

doldt

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Actually i found out that i can do something like this: `Global.refPatients.get("p151954902")` which i think is less complicated than your solution, anyway, thank you! ;) – Michał Gątkowski Jul 19 '15 at 10:32
2

@MichałGątkowski that must be a custom method defined on `refPatients` or its prototype then, regular Javascript objects don't have a `get` method. – doldt Jul 19 '15 at 11:25

How to call .get() method on this JavaScript array?

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