Replace old isObject for underscore methods

app/assets/javascripts/environments/components/environment_item.vue

 <script>
 import Timeago from 'timeago.js';
+import _ from 'underscore';
 import '../../lib/utils/text_utility';
 import ActionsComponent from './environment_actions.vue';
 import ExternalUrlComponent from './environment_external_url.vue';
@@ -59,7 +60,7 @@ export default {
     hasLastDeploymentKey() {
       if (this.model &&
         this.model.last_deployment &&
-        !this.$options.isObjectEmpty(this.model.last_deployment)) {
+        !_.isEmpty(this.model.last_deployment)) {
         return true;
       }
       return false;
@@ -310,8 +311,8 @@ export default {
      */
     deploymentHasUser() {
       return this.model &&
-        !this.$options.isObjectEmpty(this.model.last_deployment) &&
-        !this.$options.isObjectEmpty(this.model.last_deployment.user);
+        !_.isEmpty(this.model.last_deployment) &&
+        !_.isEmpty(this.model.last_deployment.user);
     },
     /**
@@ -322,8 +323,8 @@ export default {
      */
     deploymentUser() {
       if (this.model &&
-        !this.$options.isObjectEmpty(this.model.last_deployment) &&
-        !this.$options.isObjectEmpty(this.model.last_deployment.user)) {
+        !_.isEmpty(this.model.last_deployment) &&
+        !_.isEmpty(this.model.last_deployment.user)) {
         return this.model.last_deployment.user;
       }
       return {};
@@ -338,8 +339,8 @@ export default {
      */
     shouldRenderBuildName() {
       return !this.model.isFolder &&
-        !this.$options.isObjectEmpty(this.model.last_deployment) &&
-        !this.$options.isObjectEmpty(this.model.last_deployment.deployable);
+        !_.isEmpty(this.model.last_deployment) &&
+        !_.isEmpty(this.model.last_deployment.deployable);
     },
     /**
@@ -380,7 +381,7 @@ export default {
      */
     shouldRenderDeploymentID() {
       return !this.model.isFolder &&
-        !this.$options.isObjectEmpty(this.model.last_deployment) &&
+        !_.isEmpty(this.model.last_deployment) &&
         this.model.last_deployment.iid !== undefined;
     },
@@ -410,21 +411,6 @@ export default {
     },
   },
-  /**
-   * Helper to verify if certain given object are empty.
-   * Should be replaced by lodash _.isEmpty - https://lodash.com/docs/4.17.2#isEmpty
-   * @param  {Object} object
-   * @returns {Bollean}
-   */
-  isObjectEmpty(object) {
-    for (const key in object) { // eslint-disable-line
-      if (hasOwnProperty.call(object, key)) {
-        return false;
-      }
-    }
-    return true;
-  },
-
   methods: {
     onClickFolder() {
       eventHub.$emit('toggleFolder', this.model, this.folderUrl);

app/assets/javascripts/gl_dropdown.js

 /* eslint-disable func-names, space-before-function-paren, no-var, one-var, one-var-declaration-per-line, prefer-rest-params, max-len, vars-on-top, wrap-iife, no-unused-vars, quotes, no-shadow, no-cond-assign, prefer-arrow-callback, no-return-assign, no-else-return, camelcase, comma-dangle, no-lonely-if, guard-for-in, no-restricted-syntax, consistent-return, prefer-template, no-param-reassign, no-loop-func, no-mixed-operators */
 /* global fuzzaldrinPlus */
+import { isObject } from './lib/utils/type_utility';
 var GitLabDropdown, GitLabDropdownFilter, GitLabDropdownRemote;
@@ -93,7 +94,7 @@ GitLabDropdownFilter = (function() {
           //     { prop: 'def' }
           //   ]
           // }
-          if (gl.utils.isObject(data)) {
+          if (isObject(data)) {
             results = {};
             for (key in data) {
               group = data[key];
@@ -396,7 +397,7 @@ GitLabDropdown = (function() {
       html = [this.noResults()];
     } else {
       // Handle array groups
-      if (gl.utils.isObject(data)) {
+      if (isObject(data)) {
         html = [];
         for (name in data) {
           groupData = data[name];

app/assets/javascripts/lib/utils/type_utility.js

-/* eslint-disable func-names, space-before-function-paren, wrap-iife, no-var, no-param-reassign, no-cond-assign, no-return-assign, max-len */
-(function() {
-  (function(w) {
-    var base;
-    if (w.gl == null) {
-      w.gl = {};
-    }
-    if ((base = w.gl).utils == null) {
-      base.utils = {};
-    }
-    return w.gl.utils.isObject = function(obj) {
-      return (obj != null) && (obj.constructor === Object);
-    };
-  })(window);
-}).call(window);
+// eslint-disable-next-line import/prefer-default-export
+export const isObject = obj => obj && obj.constructor === Object;

app/assets/javascripts/main.js

@@ -59,7 +59,6 @@ import './lib/utils/datetime_utility';
 import './lib/utils/notify';
 import './lib/utils/pretty_time';
 import './lib/utils/text_utility';
-import './lib/utils/type_utility';
 import './lib/utils/url_utility';
 // u2f

changelogs/unreleased/remove-old-isobject.yml

+---
+title: Remove unused code and uses underscore
+merge_request:
+author:

spec/javascripts/blob/create_branch_dropdown_spec.js

 require('~/gl_dropdown');
-require('~/lib/utils/type_utility');
 require('~/blob/create_branch_dropdown');
 require('~/blob/target_branch_dropdown');

spec/javascripts/blob/target_branch_dropdown_spec.js

 require('~/gl_dropdown');
-require('~/lib/utils/type_utility');
 require('~/blob/create_branch_dropdown');
 require('~/blob/target_branch_dropdown');

spec/javascripts/gl_dropdown_spec.js

@@ -2,7 +2,6 @@
 require('~/gl_dropdown');
 require('~/lib/utils/common_utils');
-require('~/lib/utils/type_utility');
 require('~/lib/utils/url_utility');
 (() => {

spec/javascripts/labels_issue_sidebar_spec.js

@@ -2,7 +2,6 @@
 /* global IssuableContext */
 /* global LabelsSelect */
-require('~/lib/utils/type_utility');
 require('~/gl_dropdown');
 require('select2');
 require('vendor/jquery.nicescroll');

spec/javascripts/project_title_spec.js

@@ -2,7 +2,6 @@
 /* global Project */
 require('select2/select2.js');
-require('~/lib/utils/type_utility');
 require('~/gl_dropdown');
 require('~/api');
 require('~/project_select');

spec/javascripts/search_autocomplete_spec.js

@@ -3,7 +3,6 @@
 require('~/gl_dropdown');
 require('~/search_autocomplete');
 require('~/lib/utils/common_utils');
-require('~/lib/utils/type_utility');
 require('vendor/fuzzaldrin-plus');
 (function() {