Is it possible to search for a specific element in a json script with a variable

Question

The following script is an example script. I need it to log the name Joe;

const names = `

    {
         "Joe": {
              "nat": "American",
              "hair": "brown"
         },
         "Peter": {
              "nat": "German",
              "hair": "blond"
         }
    }
`;

const load = JSON.parse(names);

var search = "Joe"

console.log(names.search);

The last line outputs "undefined" because it's searching for "search" instead of the value of the variable search. Before you ask: yes, I need it to be a variable (because the value of the variable would actually be the value of an input). Is there any way I can search the value of a variable in the JSON bit?

Thanks in advance

Does this answer your question? [Using variable keys to access values in JavaScript objects](https://stackoverflow.com/questions/922544/using-variable-keys-to-access-values-in-javascript-objects) — juzraai, Oct 17 '21 at 14:26
If you just need it to log the name Joe, why don't you just do `console.log(search)`? Or did you mean that you need it to log the information associated to the name Joe (`{"nat": "American", "hair": "brown"}`)? — Donald Duck, Oct 17 '21 at 15:49

score 1 · Answer 1 · answered Oct 17 '21 at 14:22

Almost there (you still have to parse it first):

const names = `

    {
         "Joe": {
              "nat": "American",
              "hair": "brown"
         },
         "Peter": {
              "nat": "German",
              "hair": "blond"
         }
    }
`;

const load = JSON.parse(names);

var search = "Joe"

console.log(load[search]);

score 0 · Answer 2 · answered Oct 17 '21 at 14:22

0

Try using names[search] instead

answered Oct 17 '21 at 14:22

Daniel M

133
3
9

Is it possible to search for a specific element in a json script with a variable

2 Answers2