@storybook/semver/ranges/valid.js

The semantic version parser used by npm for browser.

"use strict";

var Range = require('../classes/range');

var validRange = function validRange(range, options) {
  try {
    // Return '*' instead of '' so that truthiness works.
    // This will throw if it's invalid anyway
    return new Range(range, options).range || '*';
  } catch (er) {
    return null;
  }
};

module.exports = validRange;