a tool to operate location search

var optSearch = require('opt-search')

let s = '?aaa=111&bbb=222&ccc=333'

console.log(optSearch('aaa','ssss',s))  // ===> ?aaa=ssss&bbb=222&ccc=333

console.log(optSearch('aaa',true,s))  // ===> ?bbb=222&ccc=333

console.log(optSearch('ddd','444',s)) // ===> ?aaa=111&bbb=222&ccc=333&ddd=444

console.log(optSearch({a:1,bbb:'eee',d:333},s)) // ===> ?aaa=111&bbb=eee&ccc=333&a=1&d=333

console.log(optSearch(s))  // ===> Object {aaa: "111", bbb: "222", ccc: "333"}