Benchmark: Parsing window.location.search to object

Script Preparation code:

var search = "?test=test2&test3=test4&test5=test6";
var regex = /[&\?]([^=]+)=([^&]+)/g;

Tests:

Double splitting
var params = {}; var query = search.substring(1); var paramStrs = query.split('&'); for (paramStr of paramStrs) { var pair = paramStr.split('='); params[decodeURIComponent(pair[0])] = decodeURIComponent(pair[1]); }
Regex mapping
var params = Object.fromEntries(new Map(Array.from(search.matchAll(regex)).map(match => [decodeURIComponent(match[1]), decodeURIComponent(match[2])])));
Regex looping
var params = {}; while((param = regex.exec(search)) !== null) { params[decodeURIComponent(param[1])] = decodeURIComponent(param[2]); }
Regex iterator
var params = {}; var regexMatches = search.matchAll(regex); while(!(current = regexMatches.next()).done) { var param = current.value; params[decodeURIComponent(param[1])] = decodeURIComponent(param[2]); }

Rendered benchmark preparation results:

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Parsing window.location.search to object (version: 6)