Parse json structures which might have strings that are also JSON structures, but recursively. Useful for diffing localstorage entries.

superJsonParse.js

function superJsonParse(json){
    let nested = json;
    if( typeof json === 'string' ) try {
        nested = JSON.parse(json);
    }
    catch(e){}

    if( typeof json === 'object' ) for( [k, v] of Object.entries(nested) ){
        nested[k] = superJsonParse(v);
    }

    return nested;
}