Replace underscore functions with lodash equivalents in ./app/assets/javascripts/vue_shared

https://gitlab.com/gitlab-org/gitlab/-/merge_requests/25108

app/assets/javascripts/vue_shared/components/commit.vue

 <script>
-import _ from 'underscore';
+import { isString, isEmpty } from 'lodash';
 import { GlTooltipDirective, GlLink } from '@gitlab/ui';
 import { __, sprintf } from '~/locale';
 import TooltipOnTruncate from '~/vue_shared/components/tooltip_on_truncate.vue';
@@ -56,7 +56,7 @@ export default {
       required: false,
       default: undefined,
       validator: ref =>
-        _.isUndefined(ref) || (_.isFinite(ref.iid) && _.isString(ref.path) && !_.isEmpty(ref.path)),
+        ref === undefined || (Number.isFinite(ref.iid) && isString(ref.path) && !isEmpty(ref.path)),
     },
 
     /**

app/assets/javascripts/vue_shared/components/content_viewer/viewers/image_viewer.vue

 <script>
-import _ from 'underscore';
+import { throttle } from 'lodash';
 import { numberToHumanSize } from '../../../../lib/utils/number_utils';
 
 export default {
@@ -48,7 +48,7 @@ export default {
   mounted() {
     // The onImgLoad may have happened before the control was actually mounted
     this.onImgLoad();
-    this.resizeThrottled = _.throttle(this.onImgLoad, 400);
+    this.resizeThrottled = throttle(this.onImgLoad, 400);
     window.addEventListener('resize', this.resizeThrottled, false);
   },
   methods: {

app/assets/javascripts/vue_shared/components/diff_viewer/viewers/image_diff/swipe_viewer.vue

 <script>
-import _ from 'underscore';
+import { throttle } from 'lodash';
 import { pixeliseValue } from '../../../lib/utils/dom_utils';
 import ImageViewer from '../../../content_viewer/viewers/image_viewer.vue';
 
@@ -98,7 +98,7 @@ export default {
       this.swipeOldImgInfo = imgInfo;
       this.prepareSwipe();
     },
-    resize: _.throttle(function throttledResize() {
+    resize: throttle(function throttledResize() {
       this.swipeBarPos = 0;
       this.swipeWrapWidth = 0;
       this.prepareSwipe();

app/assets/javascripts/vue_shared/components/issue/issue_warning.vue

 <script>
 import { GlLink } from '@gitlab/ui';
-import _ from 'underscore';
+import { escape as esc } from 'lodash';
 import { __, sprintf } from '~/locale';
 import icon from '../../../vue_shared/components/icon.vue';
 
 function buildDocsLinkStart(path) {
-  return `<a href="${_.escape(path)}" target="_blank" rel="noopener noreferrer">`;
+  return `<a href="${esc(path)}" target="_blank" rel="noopener noreferrer">`;
 }
 
 export default {

app/assets/javascripts/vue_shared/components/markdown/field.vue

 <script>
 import $ from 'jquery';
 import '~/behaviors/markdown/render_gfm';
-import _ from 'underscore';
+import { unescape as unesc } from 'lodash';
 import { __, sprintf } from '~/locale';
 import { stripHtml } from '~/lib/utils/text_utility';
 import Flash from '../../../flash';
@@ -115,7 +115,7 @@ export default {
           return text;
         }
 
-        return _.unescape(stripHtml(richText).replace(/\n/g, ''));
+        return unesc(stripHtml(richText).replace(/\n/g, ''));
       }
 
       return '';

app/assets/javascripts/vue_shared/components/project_selector/project_list_item.vue

 <script>
 import { GlButton } from '@gitlab/ui';
-import _ from 'underscore';
+import { isString } from 'lodash';
 import Icon from '~/vue_shared/components/icon.vue';
 import ProjectAvatar from '~/vue_shared/components/project_avatar/default.vue';
 import highlight from '~/lib/utils/highlight';
@@ -17,7 +17,7 @@ export default {
     project: {
       type: Object,
       required: true,
-      validator: p => _.isFinite(p.id) && _.isString(p.name) && _.isString(p.name_with_namespace),
+      validator: p => Number.isFinite(p.id) && isString(p.name) && isString(p.name_with_namespace),
     },
     selected: {
       type: Boolean,

app/assets/javascripts/vue_shared/components/project_selector/project_selector.vue

 <script>
-import _ from 'underscore';
+import { debounce } from 'lodash';
 import { GlLoadingIcon, GlSearchBoxByType, GlInfiniteScroll } from '@gitlab/ui';
 import ProjectListItem from './project_list_item.vue';
 
@@ -61,9 +61,9 @@ export default {
       this.$emit('bottomReached');
     },
     isSelected(project) {
-      return Boolean(_.find(this.selectedProjects, { id: project.id }));
+      return this.selectedProjects.some(({ id }) => project.id === id);
     },
-    onInput: _.debounce(function debouncedOnInput() {
+    onInput: debounce(function debouncedOnInput() {
       this.$emit('searched', this.searchQuery);
     }, SEARCH_INPUT_TIMEOUT_MS),
   },

app/assets/javascripts/vue_shared/components/split_button.vue

 <script>
-import _ from 'underscore';
-
+import { isString } from 'lodash';
 import { GlDropdown, GlDropdownDivider, GlDropdownItem } from '@gitlab/ui';
 
 const isValidItem = item =>
-  _.isString(item.eventName) && _.isString(item.title) && _.isString(item.description);
+  isString(item.eventName) && isString(item.title) && isString(item.description);
 
 export default {
   components: {

app/assets/javascripts/vue_shared/mixins/related_issuable_mixin.js

-import _ from 'underscore';
+import { isEmpty } from 'lodash';
 import { sprintf, __ } from '~/locale';
 import { formatDate } from '~/lib/utils/datetime_utility';
 import tooltip from '~/vue_shared/directives/tooltip';
@@ -130,7 +130,7 @@ const mixins = {
       return this.assignees.length > 0;
     },
     hasMilestone() {
-      return !_.isEmpty(this.milestone);
+      return !isEmpty(this.milestone);
     },
     iconName() {
       if (this.isMergeRequest && this.isMerged) {

changelogs/unreleased/resolve_gitlab_issue_196641.yml

+---
+title: Replace underscore with lodash for ./app/assets/javascripts/vue_shared
+merge_request: 25108
+author: Tobias Spagert
+type: other

spec/javascripts/vue_shared/components/project_selector/project_selector_spec.js

@@ -22,6 +22,7 @@ describe('ProjectSelector component', () => {
 
   beforeEach(() => {
     jasmine.clock().install();
+    jasmine.clock().mockDate();
 
     wrapper = mount(Vue.extend(ProjectSelector), {
       localVue,