Doing a “Diff” on an Associative Array in javascript / jQuery?

Question

If I have two associative arrays, what would be the most efficient way of doing a diff against their values?

For example, given:

  array1 = {
    for         


        

Answer 1

A minha ficou assim:

function diff(obj1, obj2){

var result = {};

for(var key1 in obj1){

    let resposta =  {
        before : obj1[key1] ? obj1[key1] : '',
        after  : obj2[key1] ? obj2[key1] : ''
    };

    if(resposta.before !== resposta.after){

        result[key1] = resposta;
    }
}

for(var key2 in obj2){

    if(!(key2 in result) || (key2 in obj1)){

        let resposta = {
            before : obj1[key2] ? obj1[key2] : '', 
            after  : obj2[key2] ? obj2[key2] : ''
        }

        if(resposta.before !== resposta.after){

            result[key2] = resposta;
        }
    }
}

return (Object.assign({}, result));
}