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'use strict';
// Hepler to [reference labels]. No better place for this code :)
// It's only for refs/links and should not be exported anywhere.
module.exports = function normalizeReference(str) {
// use .toUpperCase() instead of .toLowerCase()
// here to avoid a conflict with Object.prototype
// members (most notably, `__proto__`)
return str.trim().replace(/\s+/g, ' ').toUpperCase();
};