isArray to native Array.isArray

isUnd(*) to native undefined === *
isFunc to native typeof * === 'function'
isObject to native typeof * === 'object'
microtime() to native Date().getTime();
noop to native ()=>{}
noopFalse to native ()=>false
noopTrue to native ()=>true
boolToAjax to native *?'1':'0'
Underscore.js to native

dev/View/Popup/Activate.js

@@ -1,7 +1,7 @@
 import ko from 'ko';
 
 import { StorageResultType, Notification } from 'Common/Enums';
-import { trim, isUnd } from 'Common/Utils';
+import { trim } from 'Common/Utils';
 import { RAINLOOP_TRIAL_KEY } from 'Common/Consts';
 import { i18n, getNotification } from 'Common/Translator';
 
@@ -89,7 +89,7 @@ class ActivatePopupView extends AbstractViewNext {
 	onShow(isTrial) {
 		this.domain(Settings.settingsGet('AdminDomain'));
 		if (!this.activateProcess()) {
-			isTrial = isUnd(isTrial) ? false : !!isTrial;
+			isTrial = undefined === isTrial ? false : !!isTrial;
 
 			this.key(isTrial ? RAINLOOP_TRIAL_KEY : '');
 			this.activateText('');

dev/View/Popup/Ask.js

@@ -2,7 +2,6 @@ import ko from 'ko';
 import key from 'key';
 
 import { KeyState } from 'Common/Enums';
-import { isFunc } from 'Common/Utils';
 import { i18n } from 'Common/Translator';
 
 import { popup } from 'Knoin/Knoin';
@@ -46,7 +45,7 @@ class AskPopupView extends AbstractViewNext {
 	yesClick() {
 		this.cancelCommand();
 
-		if (isFunc(this.fYesAction)) {
+		if (typeof this.fYesAction === 'function') {
 			this.fYesAction.call(null);
 		}
 	}
@@ -54,7 +53,7 @@ class AskPopupView extends AbstractViewNext {
 	noClick() {
 		this.cancelCommand();
 
-		if (isFunc(this.fNoAction)) {
+		if (typeof this.fNoAction === 'function') {
 			this.fNoAction.call(null);
 		}
 	}

dev/View/Popup/Compose.js

@@ -1,5 +1,3 @@
-import window from 'window';
-import _ from '_';
 import $ from '$';
 import ko from 'ko';
 import key from 'key';
@@ -19,18 +17,15 @@ import {
 
 import {
 	trim,
-	isArray,
 	isNormal,
 	delegateRun,
 	isNonEmptyArray,
 	clearBqSwitcher,
 	replySubjectAdd,
 	encodeHtml,
-	noopFalse,
 	inFocus,
 	delegateRunOnDestroy,
-	pInt,
-	isUnd
+	pInt
 } from 'Common/Utils';
 
 import { UNUSED_OPTION_VALUE } from 'Common/Consts';
@@ -291,8 +286,8 @@ class ComposePopupView extends AbstractViewNext {
 			}
 		});
 
-		this.attachmentsInProcess.subscribe((value) => {
-			if (this.attachmentsInProcessError() && isArray(value) && value.length) {
+		this.attachmentsInProcess.subscribe(value => {
+			if (this.attachmentsInProcessError() && isNonEmptyArray(value)) {
 				this.attachmentsInProcessError(false);
 			}
 		});
@@ -333,7 +328,12 @@ class ComposePopupView extends AbstractViewNext {
 		this.bDisabeCloseOnEsc = true;
 		this.sDefaultKeyScope = KeyState.Compose;
 
-		this.tryToClosePopup = _.debounce(this.tryToClosePopup.bind(this), Magics.Time200ms);
+		// debounce
+		var d, fn = this.tryToClosePopup.bind(this);
+		this.tryToClosePopup = ()=>{
+			d && clearTimeout(d);
+			d = setTimeout(fn, Magics.Time200ms);
+		};
 
 		this.emailsSource = this.emailsSource.bind(this);
 		this.autosaveFunction = this.autosaveFunction.bind(this);
@@ -367,7 +367,7 @@ class ComposePopupView extends AbstractViewNext {
 		if (!this.emptyToError() && !this.attachmentsInErrorError() && !this.attachmentsInProcessError()) {
 			if (SettingsStore.replySameFolder()) {
 				if (
-					isArray(this.aDraftInfo) &&
+					Array.isArray(this.aDraftInfo) &&
 					3 === this.aDraftInfo.length &&
 					isNormal(this.aDraftInfo[2]) &&
 					this.aDraftInfo[2].length
@@ -386,7 +386,7 @@ class ComposePopupView extends AbstractViewNext {
 				this.sendError(false);
 				this.sending(true);
 
-				if (isArray(this.aDraftInfo) && 3 === this.aDraftInfo.length) {
+				if (Array.isArray(this.aDraftInfo) && 3 === this.aDraftInfo.length) {
 					const flagsCache = getMessageFlagsFromCache(this.aDraftInfo[2], this.aDraftInfo[1]);
 					if (flagsCache) {
 						if ('forward' === this.aDraftInfo[0]) {
@@ -531,12 +531,12 @@ class ComposePopupView extends AbstractViewNext {
 	}
 
 	autosaveStart() {
-		window.clearTimeout(this.iTimer);
-		this.iTimer = window.setTimeout(this.autosaveFunction, Magics.Time1m);
+		clearTimeout(this.iTimer);
+		this.iTimer = setTimeout(this.autosaveFunction, Magics.Time1m);
 	}
 
 	autosaveStop() {
-		window.clearTimeout(this.iTimer);
+		clearTimeout(this.iTimer);
 	}
 
 	emailsSource(oData, fResponse) {
@@ -672,7 +672,7 @@ class ComposePopupView extends AbstractViewNext {
 				this.draftFolder(oData.Result.NewFolder);
 				this.draftUid(oData.Result.NewUid);
 
-				this.savedTime(window.Math.round(new window.Date().getTime() / 1000));
+				this.savedTime(Math.round(new Date().getTime() / 1000));
 
 				if (this.bFromDraft) {
 					setFolderHash(this.draftFolder(), '');
@@ -907,9 +907,9 @@ class ComposePopupView extends AbstractViewNext {
 		oMessageOrArray = oMessageOrArray || null;
 		if (oMessageOrArray && isNormal(oMessageOrArray)) {
 			message =
-				isArray(oMessageOrArray) && 1 === oMessageOrArray.length
+				Array.isArray(oMessageOrArray) && 1 === oMessageOrArray.length
 					? oMessageOrArray[0]
-					: !isArray(oMessageOrArray)
+					: !Array.isArray(oMessageOrArray)
 					? oMessageOrArray
 					: null;
 		}
@@ -1207,7 +1207,7 @@ class ComposePopupView extends AbstractViewNext {
 	onBuild() {
 		this.initUploader();
 
-		key('ctrl+q, command+q, ctrl+w, command+w', KeyState.Compose, noopFalse);
+		key('ctrl+q, command+q, ctrl+w, command+w', KeyState.Compose, ()=>false);
 
 		key('`', KeyState.Compose, () => {
 			if (this.oEditor && !this.oEditor.hasFocus() && !inFocus()) {
@@ -1250,9 +1250,14 @@ class ComposePopupView extends AbstractViewNext {
 		});
 
 		Events.sub('window.resize.real', this.resizerTrigger);
-		Events.sub('window.resize.real', _.debounce(this.resizerTrigger, Magics.Time50ms));
+		var d, o = this;
+		Events.sub('window.resize.real', ()=>{
+			// debounce
+			d && clearTimeout(d);
+			d = setTimeout(o.resizerTrigger, Magics.Time50ms);
+		});
 
-		window.setInterval(() => {
+		setInterval(() => {
 			if (this.modalVisibility() && this.oEditor) {
 				this.oEditor.resize();
 			}
@@ -1322,13 +1327,13 @@ class ComposePopupView extends AbstractViewNext {
 						}
 
 						if (item) {
-							item.progress(window.Math.floor((loaded / total) * 100));
+							item.progress(Math.floor((loaded / total) * 100));
 						}
 					})
 					.on('onSelect', (sId, oData) => {
 						this.dragAndDropOver(false);
 
-						const fileName = isUnd(oData.FileName) ? '' : oData.FileName.toString(),
+						const fileName = undefined === oData.FileName ? '' : oData.FileName.toString(),
 							size = isNormal(oData.Size) ? pInt(oData.Size) : null,
 							attachment = new ComposeAttachmentModel(sId, fileName, size);
 
@@ -1394,7 +1399,7 @@ class ComposePopupView extends AbstractViewNext {
 								attachment.initByUploadJson(attachmentJson);
 							}
 
-							if (isUnd(uploadCache[id])) {
+							if (undefined === uploadCache[id]) {
 								delete uploadCache[id];
 							}
 						}

dev/View/Popup/ComposeOpenPgp.js

@@ -2,7 +2,7 @@ import $ from '$';
 import ko from 'ko';
 import key from 'key';
 
-import { pString, log, isUnd, trim, defautOptionsAfterRender } from 'Common/Utils';
+import { pString, log, trim, defautOptionsAfterRender } from 'Common/Utils';
 
 import { Magics, KeyState } from 'Common/Enums';
 import { i18n } from 'Common/Translator';
@@ -102,7 +102,7 @@ class ComposeOpenPgpPopupView extends AbstractViewNext {
 		this.addOptionClass = (domOption, item) => {
 			this.defautOptionsAfterRender(domOption, item);
 
-			if (item && !isUnd(item.class) && domOption) {
+			if (item && undefined !== item.class && domOption) {
 				$(domOption).addClass(item.class);
 			}
 		};

dev/View/Popup/Contacts.js

@@ -22,8 +22,7 @@ import {
 	windowResizeCallback,
 	isNonEmptyArray,
 	fakeMd5,
-	pInt,
-	isUnd
+	pInt
 } from 'Common/Utils';
 
 import { CONTACTS_PER_PAGE } from 'Common/Consts';
@@ -649,8 +648,8 @@ class ContactsPopupView extends AbstractViewNext {
 	}
 
 	onShow(bBackToCompose, sLastComposeFocusedField) {
-		this.bBackToCompose = isUnd(bBackToCompose) ? false : !!bBackToCompose;
-		this.sLastComposeFocusedField = isUnd(sLastComposeFocusedField) ? '' : sLastComposeFocusedField;
+		this.bBackToCompose = undefined === bBackToCompose ? false : !!bBackToCompose;
+		this.sLastComposeFocusedField = undefined === sLastComposeFocusedField ? '' : sLastComposeFocusedField;
 
 		routeOff();
 		this.reloadContactList(true);

dev/View/Popup/FolderSystem.js

@@ -1,9 +1,8 @@
-import _ from '_';
 import ko from 'ko';
 
 import { SetSystemFoldersNotification, Magics } from 'Common/Enums';
 import { UNUSED_OPTION_VALUE } from 'Common/Consts';
-import { folderListOptionsBuilder, noop, defautOptionsAfterRender } from 'Common/Utils';
+import { folderListOptionsBuilder, defautOptionsAfterRender } from 'Common/Utils';
 import { initOnStartOrLangChange, i18n } from 'Common/Translator';
 
 import FolderStore from 'Stores/User/Folder';
@@ -56,6 +55,7 @@ class FolderSystemPopupView extends AbstractViewNext {
 		this.trashFolder = FolderStore.trashFolder;
 		this.archiveFolder = FolderStore.archiveFolder;
 
+		var d;
 		const fSetSystemFolders = () => {
 				Settings.settingsSet('SentFolder', FolderStore.sentFolder());
 				Settings.settingsSet('DraftFolder', FolderStore.draftFolder());
@@ -63,17 +63,21 @@ class FolderSystemPopupView extends AbstractViewNext {
 				Settings.settingsSet('TrashFolder', FolderStore.trashFolder());
 				Settings.settingsSet('ArchiveFolder', FolderStore.archiveFolder());
 			},
-			fSaveSystemFolders = _.debounce(() => {
-				fSetSystemFolders();
-				Remote.saveSystemFolders(noop, {
-					SentFolder: FolderStore.sentFolder(),
-					DraftFolder: FolderStore.draftFolder(),
-					SpamFolder: FolderStore.spamFolder(),
-					TrashFolder: FolderStore.trashFolder(),
-					ArchiveFolder: FolderStore.archiveFolder(),
-					NullFolder: 'NullFolder'
-				});
-			}, Magics.Time1s),
+			fSaveSystemFolders = ()=>{
+				// debounce
+				d && clearTimeout(d);
+				d = setTimeout(()=>{
+					fSetSystemFolders();
+					Remote.saveSystemFolders(()=>{}, {
+						SentFolder: FolderStore.sentFolder(),
+						DraftFolder: FolderStore.draftFolder(),
+						SpamFolder: FolderStore.spamFolder(),
+						TrashFolder: FolderStore.trashFolder(),
+						ArchiveFolder: FolderStore.archiveFolder(),
+						NullFolder: 'NullFolder'
+					});
+				}, Magics.Time1s);
+			},
 			fCallback = () => {
 				fSetSystemFolders();
 				fSaveSystemFolders();

dev/View/Popup/KeyboardShortcutsHelp.js

@@ -1,4 +1,3 @@
-import _ from '_';
 import key from 'key';
 
 import { KeyState, Magics } from 'Common/Enums';
@@ -17,32 +16,39 @@ class KeyboardShortcutsHelpPopupView extends AbstractViewNext {
 	}
 
 	onBuild(dom) {
+		var t;
 		key(
 			'tab, shift+tab, left, right',
 			KeyState.PopupKeyboardShortcutsHelp,
-			_.throttle((event, handler) => {
-				if (event && handler) {
-					const $tabs = dom.find('.nav.nav-tabs > li'),
-						isNext = handler && ('tab' === handler.shortcut || 'right' === handler.shortcut);
+			(event, handler)=>{
+				// throttle
+				if (!t) {
+					t = setTimeout(()=>{
+						t = 0;
+						if (event && handler) {
+							const $tabs = dom.find('.nav.nav-tabs > li'),
+								isNext = handler && ('tab' === handler.shortcut || 'right' === handler.shortcut);
 
-					let index = $tabs.index($tabs.filter('.active'));
-					if (!isNext && 0 < index) {
-						index -= 1;
-					} else if (isNext && index < $tabs.length - 1) {
-						index += 1;
-					} else {
-						index = isNext ? 0 : $tabs.length - 1;
-					}
+							let index = $tabs.index($tabs.filter('.active'));
+							if (!isNext && 0 < index) {
+								index -= 1;
+							} else if (isNext && index < $tabs.length - 1) {
+								index += 1;
+							} else {
+								index = isNext ? 0 : $tabs.length - 1;
+							}
 
-					$tabs
-						.eq(index)
-						.find('a[data-toggle="tab"]')
-						.tab('show');
-					return false;
+							$tabs
+								.eq(index)
+								.find('a[data-toggle="tab"]')
+								.tab('show');
+							return false;
+						}
+
+						return true;
+					}, Magics.Time100ms);
 				}
-
-				return true;
-			}, Magics.Time100ms)
+			}
 		);
 	}
 }

dev/View/Popup/Plugin.js

@@ -1,4 +1,3 @@
-import _ from '_';
 import ko from 'ko';
 import key from 'key';
 
@@ -43,7 +42,12 @@ class PluginPopupView extends AbstractViewNext {
 		this.bDisabeCloseOnEsc = true;
 		this.sDefaultKeyScope = KeyState.All;
 
-		this.tryToClosePopup = _.debounce(this.tryToClosePopup.bind(this), Magics.Time200ms);
+		var d, fn = this.tryToClosePopup.bind(this);
+		this.tryToClosePopup = ()=>{
+			// debounce
+			d && clearTimeout(d);
+			d = setTimeout(fn, Magics.Time200ms);
+		};
 	}
 
 	@command((self) => self.hasConfiguration())

dev/View/User/AbstractSystemDropDown.js

@@ -6,7 +6,7 @@ import AccountStore from 'Stores/User/Account';
 import MessageStore from 'Stores/User/Message';
 
 import { Capa, Magics, KeyState } from 'Common/Enums';
-import { trim, isUnd } from 'Common/Utils';
+import { trim } from 'Common/Utils';
 import { settings } from 'Common/Links';
 
 import * as Events from 'Common/Events';
@@ -51,7 +51,7 @@ class AbstractSystemDropDownUserView extends AbstractViewNext {
 	}
 
 	accountClick(account, event) {
-		if (account && event && !isUnd(event.which) && 1 === event.which) {
+		if (account && event && undefined !== event.which && 1 === event.which) {
 			AccountStore.accounts.loading(true);
 			setTimeout(() => AccountStore.accounts.loading(false), Magics.Time1s);
 		}

dev/View/User/MailBox/FolderList.js

@@ -3,7 +3,7 @@ import $ from '$';
 import ko from 'ko';
 import key from 'key';
 
-import { trim, isNormal, isArray, windowResize } from 'Common/Utils';
+import { trim, isNormal, windowResize } from 'Common/Utils';
 import { Capa, Focused, Layout, KeyState, EventKeyCode, Magics } from 'Common/Enums';
 import { $htmlCL, leftPanelDisabled, moveAction } from 'Common/Globals';
 import { mailBox, settings } from 'Common/Links';
@@ -245,7 +245,7 @@ class FolderListMailBoxUserView extends AbstractViewNext {
 				copy = $htmlCL.contains('rl-ctrl-key-pressed'),
 				uids = ui.helper.data('rl-uids');
 
-			if (fromFolderFullNameRaw && isNormal(fromFolderFullNameRaw) && isArray(uids)) {
+			if (fromFolderFullNameRaw && isNormal(fromFolderFullNameRaw) && Array.isArray(uids)) {
 				getApp().moveMessagesToFolder(fromFolderFullNameRaw, uids, toFolder.fullNameRaw, copy);
 			}
 		}

dev/View/User/MailBox/MessageList.js

@@ -1,5 +1,4 @@
 import window from 'window';
-import _ from '_';
 import $ from '$';
 import ko from 'ko';
 import key from 'key';
@@ -22,7 +21,7 @@ import { UNUSED_OPTION_VALUE } from 'Common/Consts';
 
 import { bMobileDevice, popupVisibility, leftPanelDisabled, moveAction } from 'Common/Globals';
 
-import { noop, noopFalse, computedPagenatorHelper, draggablePlace, friendlySize, isUnd } from 'Common/Utils';
+import { computedPagenatorHelper, draggablePlace, friendlySize } from 'Common/Utils';
 
 import { mailBox, append } from 'Common/Links';
 import { Selector } from 'Common/Selector';
@@ -401,7 +400,7 @@ class MessageListMailBoxUserView extends AbstractViewNext {
 		}
 
 		window.clearTimeout(this.iGoToUpUpOrDownDownTimeout);
-		this.iGoToUpUpOrDownDownTimeout = window.setTimeout(() => {
+		this.iGoToUpUpOrDownDownTimeout = setTimeout(() => {
 			let prev = null,
 				next = null,
 				temp = null,
@@ -516,7 +515,7 @@ class MessageListMailBoxUserView extends AbstractViewNext {
 		el.data('rl-folder', FolderStore.currentFolderFullNameRaw());
 
 		updateUidsInfo();
-		_.defer(updateUidsInfo);
+		setTimeout(updateUidsInfo,1);
 
 		return el;
 	}
@@ -569,7 +568,7 @@ class MessageListMailBoxUserView extends AbstractViewNext {
 							clearMessageFlagsFromCacheByFolder(sFolderFullNameRaw);
 						}
 
-						Remote.messageSetSeenToAll(noop, sFolderFullNameRaw, true, sThreadUid ? uids : null);
+						Remote.messageSetSeenToAll(()=>{}, sFolderFullNameRaw, true, sThreadUid ? uids : null);
 						break;
 					case MessageSetAction.UnsetSeen:
 						folder = getFolderFromCacheList(sFolderFullNameRaw);
@@ -595,7 +594,7 @@ class MessageListMailBoxUserView extends AbstractViewNext {
 							clearMessageFlagsFromCacheByFolder(sFolderFullNameRaw);
 						}
 
-						Remote.messageSetSeenToAll(noop, sFolderFullNameRaw, false, sThreadUid ? uids : null);
+						Remote.messageSetSeenToAll(()=>{}, sFolderFullNameRaw, false, sThreadUid ? uids : null);
 						break;
 					// no default
 				}
@@ -668,7 +667,7 @@ class MessageListMailBoxUserView extends AbstractViewNext {
 	flagMessagesFast(bFlag) {
 		const checked = this.messageListCheckedOrSelected();
 		if (checked.length) {
-			if (isUnd(bFlag)) {
+			if (undefined === bFlag) {
 				const flagged = checked.filter(message => message.flagged());
 				this.setAction(
 					checked[0].folderFullNameRaw,
@@ -688,7 +687,7 @@ class MessageListMailBoxUserView extends AbstractViewNext {
 	seenMessagesFast(seen) {
 		const checked = this.messageListCheckedOrSelected();
 		if (checked.length) {
-			if (isUnd(seen)) {
+			if (undefined === seen) {
 				const unseen = checked.filter(message => message.unseen());
 				this.setAction(
 					checked[0].folderFullNameRaw,
@@ -932,8 +931,8 @@ class MessageListMailBoxUserView extends AbstractViewNext {
 			return false;
 		});
 
-		key('ctrl+left, command+left', KeyState.MessageView, noopFalse);
-		key('ctrl+right, command+right', KeyState.MessageView, noopFalse);
+		key('ctrl+left, command+left', KeyState.MessageView, ()=>false);
+		key('ctrl+right, command+right', KeyState.MessageView, ()=>false);
 	}
 
 	prefetchNextTick() {

dev/View/User/MailBox/MessageView.js

@@ -1,4 +1,3 @@
-import _ from '_';
 import $ from '$';
 import ko from 'ko';
 import key from 'key';
@@ -22,7 +21,6 @@ import { $htmlCL, leftPanelDisabled, keyScopeReal, useKeyboardShortcuts, moveAct
 import {
 	isNonEmptyArray,
 	trim,
-	noop,
 	windowResize,
 	windowResizeCallback,
 	inFocus,
@@ -542,13 +540,20 @@ class MessageViewMailBoxUserView extends AbstractViewNext {
 		this.showFullInfo.subscribe(fCheckHeaderHeight);
 		this.message.subscribe(fCheckHeaderHeight);
 
+		var t;
 		Events.sub(
 			'window.resize',
-			_.throttle(() => {
-				setTimeout(fCheckHeaderHeight, 1);
-				setTimeout(fCheckHeaderHeight, Magics.Time200ms);
-				setTimeout(fCheckHeaderHeight, Magics.Time500ms);
-			}, Magics.Time50ms)
+			()=>{
+				// throttle
+				if (!t) {
+					t = setTimeout(()=>{
+						setTimeout(fCheckHeaderHeight, 1);
+						setTimeout(fCheckHeaderHeight, Magics.Time200ms);
+						setTimeout(fCheckHeaderHeight, Magics.Time500ms);
+						t = 0;
+					}, Magics.Time50ms);
+				}
+			}
 		);
 
 		this.showFullInfo.subscribe((value) => {
@@ -932,7 +937,7 @@ class MessageViewMailBoxUserView extends AbstractViewNext {
 	readReceipt(oMessage) {
 		if (oMessage && oMessage.readReceipt()) {
 			Remote.sendReadReceiptMessage(
-				noop,
+				()=>{},
 				oMessage.folderFullNameRaw,
 				oMessage.uid,
 				oMessage.readReceipt(),