balkhaev · October 9, 2018 11:24 · Oct 9, 2018
diff --git a/es6-module.js b/es6-module.js
@@ -0,0 +1,109 @@
+// Abstract
+
+const privateSingletonVariable = {};
+
+export const publicSingletonVariable = [];
+
+export function publicPureFunction(arg1, arg2) {
+  return arg1 - arg2;
+}
+
+export default function constructorModule(key, settings = {}) {
+  const privateOption1 = settings.option1 || 'default option 1';
+  const privateOption2 = settings.option2 || 2;
+
+  function privateMethod(additionalOption) {
+    return privateOption1 + additionalOption;
+  }
+
+  publicSingletonVariable.push(key);
+  privateSingletonVariable[key] = {};
+
+  return {
+    publicApiMethod(arg1, arg2) {
+      console.log(arg1, arg2);
+    },
+    publicApiMethodUsePrivate(arg1) {
+      return privateMethod(arg1);
+    },
+    publicApiMethodUsePure(arg1) {
+      return publicPureFunction(privateOption2, arg1);
+    }
+  }
+}
+
+// Real World - Preloader
+
+const nodePreloaders = [];
+
+export const addNode = (node, type) => nodePreloaders.push({ node, type });
+export const findNodeIndex = node => nodePreloaders.findIndex(nodeLoader => nodeLoader.node === node);
+export const existNode = node => findNodeIndex(node) > -1;
+export const removeNode = node => {
+  const nodeIndex = findNodeIndex(node);
+  if (nodeIndex > -1) {
+    nodePreloaders.splice(nodeIndex, 1);
+  }
+};
+export const getNodes = () => nodePreloaders;
+
+const preloaderTypes = {
+  mini(node) {
+    // code for mini preloader
+  },
+  midi(node) {
+    // code for mini preloader
+  },
+  large(node) {
+    // code for mini preloader
+  },
+}
+
+export function preloader(node, type) {
+  // Check for null and undefined
+  if (preloaderTypes[type] == null) {
+    throw Error('Loader type is undefined!');
+  }
+  if (existNode(node)) {
+    return;
+  }
+
+  addNode(node, type);
+  preloaderTypes[type](node);
+
+  return {
+    unBlock() {
+      unblock(node);
+    },
+    isBlocked() {
+      return existNode(node);
+    }
+  }
+}
+
+export function unblock(node) {
+  if (!existNode(node)) {
+    return;
+  }
+
+  removeNode(node);
+}
+
+export default {
+  unblock: unblock,
+  block(node, opts) {
+    return preloader(node, 'midi', opts);
+  },
+  blockMini(node, opts) {
+    return preloader(node, 'mini', opts);
+  },
+  blockMidi(node, opts) {
+    return preloader(node, 'midi', opts);
+  },
+  blockLarge(node, opts) {
+    return preloader(node, 'large', opts);
+  },
+  isBlocked(node) {
+    return existNode(node);
+  },
+}
diff --git a/global-module.js b/global-module.js
@@ -0,0 +1,13 @@
+window.moduleName = ((win, doc, $) => {
+  const privateVariable = doc.innerHeight;
+
+  function privateMethod() {
+    return privateVariable;
+  }
+
+  return {
+    publicMethod() {
+      return typeof $ !== 'undefined';
+    }
+  }
+})(window, document, jQuery)