constructor()

in workbox-v4.3.1/workbox-routing.dev.js [283:322]

• 26 lines of code
• 5 McCabe index (conditional complexity)

    constructor(regExp, handler, method) {
      {
        assert_mjs.assert.isInstance(regExp, RegExp, {
          moduleName: 'workbox-routing',
          className: 'RegExpRoute',
          funcName: 'constructor',
          paramName: 'pattern'
        });
      }

      const match = ({
        url
      }) => {
        const result = regExp.exec(url.href); // Return null immediately if there's no match.

        if (!result) {
          return null;
        } // Require that the match start at the first character in the URL string
        // if it's a cross-origin request.
        // See https://github.com/GoogleChrome/workbox/issues/281 for the context
        // behind this behavior.


        if (url.origin !== location.origin && result.index !== 0) {
          {
            logger_mjs.logger.debug(`The regular expression '${regExp}' only partially matched ` + `against the cross-origin URL '${url}'. RegExpRoute's will only ` + `handle cross-origin requests if they match the entire URL.`);
          }

          return null;
        } // If the route matches, but there aren't any capture groups defined, then
        // this will return [], which is truthy and therefore sufficient to
        // indicate a match.
        // If there are capture groups, then it will return their values.


        return result.slice(1);
      };

      super(match, handler, method);
    }