[Ramda] Convert a QueryString to an Object using Function Composition in Ramda
In this lesson we'll use a handful of Ramda's utility functions to take a queryString full of name/value pairs and covert it into a JavaScript object so we can access those properties in a more useful way. Along the way, we'll build up a composition and look at the tail
, split
, map
and fromPairs
functions, along with the crucial compose
function.
const {compose, fromPairs, map, split, tail} = R const queryString = '?page=2&pageSize=10&total=203' const parseQs = compose(
fromPairs, // {"page":"2","pageSize":"10","total":"203"}
map(split('=')), // [["page","2"],["pageSize","10"],["total","203"]]
split('&'), // ["page=2","pageSize=10","total=203"]
tail // "page=2&pageSize=10&total=203"
) const result = parseQs(queryString)
console.log(result)
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