devdocs/assets/javascripts/views/pages/rdoc.js

// TODO: This file was created by bulk-decaffeinate.
// Sanity-check the conversion and remove this comment.
/*
 * decaffeinate suggestions:
 * DS102: Remove unnecessary code created because of implicit returns
 * DS206: Consider reworking classes to avoid initClass
 * Full docs: https://github.com/decaffeinate/decaffeinate/blob/main/docs/suggestions.md
 */
//= require views/pages/base

app.views.RdocPage = class RdocPage extends app.views.BasePage {
  static initClass() {
    this.events = { click: "onClick" };
  }

  onClick(event) {
    if (!event.target.classList.contains("method-click-advice")) {
      return;
    }
    $.stopEvent(event);

    const source = $(
      ".method-source-code",
      event.target.closest(".method-detail"),
    );
    const isShown = source.style.display === "block";

    source.style.display = isShown ? "none" : "block";
    return (event.target.textContent = isShown ? "Show source" : "Hide source");
  }
};
app.views.RdocPage.initClass();