decode all the child object with decodeURIComponent
When a nested object is encoded, a single layer of decoding would lead to a bug and doing multiple decoding at each layer on a dynamic object would be cumbersome.
It is a multi layer encoded object
%257B%2522lte%2522%253A800%252C%2522gte%2522%253A1…252C%2522currencyCode%2522%253A%2522EUR%2522%257D and decoding once would give us %7B%22lte%22%3A800%2C%22gte%22%3A1…252C%22currencyCode%22%3A%22EUR%22%7D (which is still an encoded object and not the result that we are interested in).
Using deepDecode, we don't have to worry about any number of encoding since it iterates until the complete object is decoded.
const multiEncodedValue = '257B%2522lte%2522%253A800%252C%2522gte%2522%253A1…252C%2522currencyCode%2522%253A%2522EUR%2522%257D';
deepDecode(multiEncodedValue); // {"lte":800,"gte":1…252C"currencyCode":"EUR"}