Guild Wars 2

Hello guys,
I have already used the GW2 api with C#.NET with good results, but now I’m trying to use them client side with Javascript. I get json data and I parse it with the following line code var jParsed = JSON.parse(jData);
With a full json list of objects everything goes good, but when there are null objects/values with .NET I can make a For loop to check if an object is null or not, while in Javascript even “null” objects seem to be “not null”.
I’m testing JS with API:2/account/bank so there are some bank’s slots that could be null (empty slot in game).

json data block example (API:2/account/bank):
[{"id":67777,“count”: 151,“binding”:"Account"},
{"id":44640,“count”: 52,“binding”:"Account"},
{"id":44640,“count” :250,“binding”:"Account"},
{"id":45001,“count”: 23,“binding”:"Account"},
null,
{"id":68109,“count”: 107,“binding”:"Account"},
{"id":43766,“count”: 250,“binding”:"Account"}]

Now I need to read json data of the items in the bank, and before it I check if a bank’s slot is empty or not. In Javascript I check if an object is null or not.

javascript check code:
for (var i = 0; i < jParsed.length; i++) {
if (jParsed[i] !== null) {
//listIds.push(jBank[it].id);
}
}

The code above seems to work but the “if” condition returns True even for the fifth object that should be null. I have noticed it because from the console of Chrome I get “Uncaught TypeError: Cannot read property ‘id’ of null”.

Does someone have any tips to skip null objects?
I’m using javascript for the first time and I didn’t understand why I couldn’t check with simply “if (jParsed[i] != null)” instead of “if (jParsed[i] !== null)”, but anyway I hope in some help

I don’t know if this is “proper” or “pretty”, but couldn’t you just use
if(jParsed[i]){
…
}

Anhim.3156:

I don’t know if this is “proper” or “pretty”, but couldn’t you just use
if(jParsed[i]){
…
}

I have tested it too, but it returns True even for “null” objects. Really I don’t understand why.

Actually I have done a new JS code block:
for (var i = 0; i < jParsed.length; i++) {
var temp = JSON.stringify(jParsed[i]);
if (jParsed[i] != “null”) {
//listIds.push(jBank[it].id);
}
}

The last solution works but I hope that could be an easier/faster way to check an object directly without stringify it again..

The only thing that comes to mind then is that your initial “null” is not the null object. Is it perhaps already a string, or some other form?

Anhim.3156:

The only thing that comes to mind then is that your initial “null” is not the null object. Is it perhaps already a string, or some other form?

No it was an object. Now (after a PC crash) all works with “if (jParsed[i] != null)”, maybe something went wrong with visual studio debug -_-

I’m assuming it must have been something wrong with the visual studio debug. Your code should (and does) work.

Here’s a JS fiddle: https://jsfiddle.net/eq8wb3t0/2/

potatofarms.9241:

I’m assuming it must have been something wrong with the visual studio debug. Your code should (and does) work.

Here’s a JS fiddle: https://jsfiddle.net/eq8wb3t0/2/

Yes it was visual studio. It was hard to imagine that visual studio debug could be bugged

Thank you for your help guys