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    querystring.stringify

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    querystring.stringify(obj, sep?, eq?, options?): void
    Attributes
    obj:Object
    The object to serialize into a URL query string
    sep?:string
    The substring used to delimit key and value pairs in the query string. Default: '&'.
    eq?:string
    . The substring used to delimit keys and values in the query string. Default: '='.
    options:
    encodeURIComponent?:Function
    The function to use when converting URL-unsafe characters to percent-encoding in the query string. Default: querystring.escape().

    The querystring.stringify() method produces a URL query string from a given obj by iterating through the object's "own properties".

    It serializes the following types of values passed in obj: string | number | bigint | boolean | string[] | number[] | bigint[] | boolean[] The numeric values must be finite. Any other input values will be coerced to empty strings.

    querystring.stringify({ foo: 'bar', baz: ['qux', 'quux'], corge: '' });
    // Returns 'foo=bar&baz=qux&baz=quux&corge='
    
    querystring.stringify({ foo: 'bar', baz: 'qux' }, ';', ':');
    // Returns 'foo:bar;baz:qux'

    By default, characters requiring percent-encoding within the query string will be encoded as UTF-8. If an alternative encoding is required, then an alternative encodeURIComponent option will need to be specified:

    // Assuming gbkEncodeURIComponent function already exists,
    
    querystring.stringify({ w: '中文', foo: 'bar' }, null, null,
                          { encodeURIComponent: gbkEncodeURIComponent });