A record of query keys mapped to query values. null values denote valueless keys. Array values denote multiple occurrences of a key:
null
{ key: null } // '?key' { key: 'value' } // '?key=value' { key: ['value1', 'value2', 'value3'] } // '?key=value1&key=value2&key=value3' { key: ['value1', null, 'value3'] } // '?key=value1&key&key=value3'
A record of query keys mapped to query values.
null
values denote valueless keys. Array values denote multiple occurrences of a key: