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nayeemzen/functional-query-string-parser.ts

Created October 23, 2018 18:41
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  1. Nayeem Zen created this gist Oct 23, 2018.
    16 changes: 16 additions & 0 deletions functional-query-string-parser.ts
    View file
    Original file line number Diff line number Diff line change
    @@ -0,0 +1,16 @@
    // Functional programming approach to parsing query strings in Typescript/ES6.
    function parseQueryString(search: string) {
    return (search.startsWith('?') ? search.substring(1) : search)
    .split('&')
    .map(str => {
    const eqIdx = str.indexOf('=');
    if (eqIdx <= 0 || eqIdx >= str.length - 1) {
    return {};
    }

    const key = str.substring(0, eqIdx);
    const value = str.substring(eqIdx + 1, str.length);
    return {[key]: value};
    })
    .reduce((prev, next) => ({...prev, ...next}));
    }