Javascript variables and parameters

Question

I have a question as to why this is not working. Noob question, probably.

var itemCheck = {
    darkBerries: 0
}

var id = darkBerries;

itemcheck . id ++;

Thank you.

What happens instead of working? What did you expect to happen? — ctt, Aug 17 '18 at 05:23
`itemcheck` is not defined. `itemCheck` is a different variable. `darkBerries` is not defined. Read about [JavaScript objects](https://developer.mozilla.org/en-US/docs/Learn/JavaScript/Objects/Basics). — axiac, Aug 17 '18 at 05:25

score 0 · Answer 1 · answered Aug 17 '18 at 05:25

0

var itemCheck = {
    darkBerries: 0
}

var id = itemCheck.darkBerries;

id ++;

answered Aug 17 '18 at 05:25

Akbar Soft

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score 0 · Accepted Answer · answered Aug 17 '18 at 05:28

If I understand correctly, you want to increment the darkBerries property using the id variable. To do that you have to save a string in the id and use the brackets notation to access the object's property:

var itemCheck = {
    darkBerries: 0
};

var id = "darkBeries";
itemCheck[id]++;

Javascript variables and parameters

2 Answers2