MediaWiki:Gadget-ToolboxTray.js

// Define toolbox tray container
var mwWrapper = document.getElementById("mw-wrapper");
var toolboxTrayContainer = document.createElement("div");
var toolboxTrayButton = document.createElement("button");
var toolboxTrayButtonInner = document.createElement("div");
var toolboxTray = document.createElement("div");
toolboxTrayContainer.id = "toolboxTrayContainer";
toolboxTrayButton.id = "toolboxTrayButton";
toolboxTrayButtonInner.id = "toolboxTrayButtonInner";
toolboxTrayButton.setAttribute('onclick','toggleToolboxTray()');
toolboxTray.id = "toolboxTray";
toolboxTrayButtonInner.textContent = "<";
mwWrapper.append(toolboxTrayContainer);
toolboxTrayContainer.append(toolboxTrayButton);
toolboxTrayButton.append(toolboxTrayButtonInner);
toolboxTrayContainer.append(toolboxTray); 

// Define links
var ToolboxURL = ['https://howto.wikioasis.org/wiki/Special:RecentChanges', 'https://howto.wikioasis.org/wiki/Special:MyTalk', 'https://howto.wikioasis.org/wiki/Special:MyContributions', 'https://howto.wikioasis.org/wiki/Special:SpecialPages', 'https://howto.wikioasis.org/wiki/Special:Upload'];
var ToolboxIcon = ['schedule', 'chat', 'history', 'description', 'upload'];
var ToolboxText = ['Recent changes', 'My talk page', 'My contribs', 'Special pages', 'Upload file'];

for (var i = 0; i < ToolboxURL.length; i++) {
var TTContainer = document.createElement("a");
var TTContainerIcon = document.createElement("div");
var TTContainerText = document.createElement("div");

TTContainer.className = "toolbox-container";
TTContainerIcon.className = "toolbox-icon";
TTContainerText.className = "toolbox-text";

TTContainer.setAttribute('href',ToolboxURL[i]);
TTContainerIcon.textContent = ToolboxIcon[i];
TTContainerText.textContent = ToolboxText[i];

toolboxTray.append(TTContainer);
TTContainer.append(TTContainerIcon);
TTContainer.append(TTContainerText);
}