JavaScript - Cannot Assign Value

Question

API is returning me a value I need to assign to a certain property in my object.

However, when I try to assign this valuee to my object, I get an error:

Error Getting Data
Arguments[1]
0: ReferenceError
message: "p_r is not defined"
stack: (...)
get stack: function () { [native code] }
set stack: function () { [native code] }
__proto__: Error
callee: function (err){
length: 1
__proto__: Object

The code where I try to assign this variable looks like this:

var AB = { pName:"AB", p_r:70, p_r_OK:80, logoURL:"../images/AB512.png" };
AB[p_r] = response[0].result;

AB object has been declared before together with p_r property. Where am I making a mistake?

var AB = { pName:"AB", p_r:70, p_r_OK:80, logoURL:"../images/AB512.png" }; — LukaVazic
– LukaVazic, Commented Jul 30, 2014 at 9:52

Patrick Evans · Accepted Answer · 2014-07-30 09:53:13Z

5

you need to use quotes with the array notation:

AB["p_r"] = response[0].result;

or use the dot notation

AB.p_r = response[0].result;

Otherwise the parser will think you are trying to use a variable named p_r

answered Jul 30, 2014 at 9:53

Patrick Evans

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2 Comments

Gorzas Over a year ago

This is better than my answer. In a matter of fact, Douglas Crockford recommends the dot notation over the array notation.

Patrick Evans Over a year ago

@user3518823, expand on "no success" are you getting the same error, a different error, or is something else happening

Gorzas · Accepted Answer · 2014-07-30 09:52:37Z

4

Is p_r a variable or is it the name of the property?

If p_r is the name of the property, you should do the assignment with '', like:

AB['p_r'] = response[0].result;

answered Jul 30, 2014 at 9:52

Gorzas

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Comments

Maneesh Singh · Accepted Answer · 2014-07-30 10:09:12Z

1

you can use

AB['p_r'] = response[0].result; OR

AB["p_r"] = response[0].result; OR
AB.p_r = response[0].result;

answered Jul 30, 2014 at 10:09

Maneesh Singh

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