Function initialize

packages/analytics-plugin-segment/src/browser.js:129–185

({ config, instance })

}

function initialize({ config, instance }) {
  const { disableAnonymousTraffic, writeKey, customScriptSrc } = config
  if (!writeKey) {
    throw new Error('No segment writeKey')
  }
  /* Disable segment.com if user is not yet identified. Save on Monthly MTU bill $$$ */
  const userID = instance.user('userId')
  if (!userID && disableAnonymousTraffic) {
    return false
  }
  /* eslint-disable */
  !function() {
    var analytics = window.analytics = window.analytics || []

    function isScriptLoaded() {
      const scripts = document.getElementsByTagName('script')
      const scriptMatch = customScriptSrc || 'cdn.segment.com/analytics.js/v1/'
      return !!Object.keys(scripts).filter((key) => {
        const scriptInfo = scripts[key] || {}
        const src = scriptInfo.src || ''
        return src.indexOf(scriptMatch) > -1
      }).length
    }

    if (!analytics.initialize) {
      if (!isScriptLoaded()) {
        analytics.invoked = !0;
        analytics.methods = ["trackSubmit", "trackClick", "trackLink", "trackForm", "pageview", "identify", "reset", "group", "track", "ready", "alias", "debug", "page", "once", "off", "on"];
        analytics.factory = function(t) {
          return function() {
            var e = Array.prototype.slice.call(arguments);
            e.unshift(t);
            analytics.push(e);
            return analytics
          }
        };
        for (var t = 0; t < analytics.methods.length; t++) {
          var e = analytics.methods[t];
          analytics[e] = analytics.factory(e)
        }
        analytics.load = function(t, e) {
          var n = document.createElement("script");
          n.type = "text/javascript";
          n.async = !0;
          n.src = customScriptSrc || "https://cdn.segment.com/analytics.js/v1/" + t + "/analytics.min.js";
          n.id = 'segment-io'
          var a = document.getElementsByTagName("script")[0];
          a.parentNode.insertBefore(n, a);
          analytics._loadOptions = e
        };
        analytics.SNIPPET_VERSION = "4.1.0";
        analytics.load(writeKey);
      }
    }
  }();
  /* eslint-enable */
}