Question

My javascript hash on my web page looks like:

{"7":{"prop1":234, ....}"101":{"prop1":121,....}

I’m trying to reference it like this:

var a = 7;

my_hash[a].prop1

But it doesn’t seem to find the hash object at the key ‘a’, since a is an integer and my keys are strings.

How can convert it to a string?

I tried:

my_hash[" + a + "].prop1

But that didn’t work either.

Answer 1

Just create a string:

var a = "7";

If you have a number already, and want to make it a string, coerce it to a string this way:

var n = 7;
var a = n + "";

So, these all will work:

my_hash["7"].prop1;

var a = "7";
my_hash[a].prop1;

var n = 7;
var a = n + "";
my_hash[a].prop1;

Edit: Some examples converting it to a string inline:

my_hash[7 + ""].prop1;

var n = 7;
my_hash[n + ""].prop1;