Single quotes in data attribute containing json

Question

Cosmetic question: I have a html element containing possible dimensions for some embedded images, these are stored as:

Answer 1

Another way is to use the function eval or create a new function. You can use either " or ' in your JSON and you don't need to put " around the keys in the JSON object.

let el = document.getElementById('example');
let person = (new Function(`return ${el.dataset.person}`))();
console.log(person);
person.age++;
console.log(person.age);