Question

JavaScript
 
Write a function named "reverse_kvs" that has a key-value store as a parameter and returns a new key-value store. Your function should add each key-value pair in the parameter to the new key-value store EXCEPT reversing the key and value. For example, if the key-value "extreme":45 were in the parameter then the returned key-value store should contain the key-value pair 45:"extreme".

Code:
function reverse_kvs(store) {
    var reverse_store = {};
    for (var key in store) {
        if (store.hasOwnProperty(key)) {
            reverse_store[store[key]] = key;
        }
    }
    return reverse_store;
}

I need to have this code return an output other than an empty result. Does anyone know how to fix the code?

*** UPDATE: The code is not correct. It returns an empty result, such as this "{}"***

Answer 1

Solution for the given question are as follows -

Note : I am using online java script compiler to run java script code. ( https://rextester.com/l/js_online_compiler )

Code:

function reverse_kvs(store) {
var reverse_store = {};
for (var key in store) {
if (store.hasOwnProperty(key)) {
reverse_store[store[key]] = key;
}
}
return reverse_store;
}
result = reverse_kvs({"name":"vikram"});
print("Result = " + JSON.stringify(result))

Code Screen Shot :

Output :