frontend

Javascript Performance: Multiple script blocks Vs single bigger block

你离开我真会死。 提交于 2019-12-06 04:12:01
问题 I have observed a weird behavior on IE8(not seen on FF 3.5). I created 2 sample web pages with only some JS in it. Page1: 3 JS blocks ( tags) with very small inline JS in them. Page2: Same JS as above, but all 3 scripts combined in one block. I opened the page using dynatrace and observed that for page1, each of the script took ~27-30ms time for parsing/execution. Total time is ~80ms. For Page2, the combined JS took ~30ms. Can someone please explain the reason behind this? Is it better to

Split an uploaded file into multiple chunks using javascript

假如想象 提交于 2019-12-06 03:32:54
问题 I'm looking for a way to split up any text/data file on the front end in the browser before being uploaded as multiple files. My limit is 40KB per upload. So if a user uploads a 400KB file, it would split this file into 10 separate chunks or 10 separate files on the front end before uploading it to the server. Currently, I'm doing it by converting this file into a base64 formatted string, then split this string by 40KB which comes out to 10 separate chunks. From there I upload each chunk as

How I can render Content Object from tt_content i my extension with php in Typo3 6.1.5

安稳与你 提交于 2019-12-06 03:15:34
I need to render with my extension a specific content from tt_content. How can I do this? \TYPO3\CMS\Frontend\ContentObject\ContentObjectRenderer ? nbar In Extbase extensions $this->cObj is no more available in the current scope, so you need to get it first before you can use: $cObj = $this->configurationManager->getContentObject(); $ttContentConfig = array( 'tables' => 'tt_content', 'source' => 123, 'dontCheckPid' => 1 ); $content .= $cObj->RECORDS($ttContentConfig); Following script will be use PI base extension. $uid = $this->cObj->data['uid']; if ($this->cObj->data['_LOCALIZED_UID']) {

Yii2 Advanced app, different session for frontend and backend with subdomains

╄→гoц情女王★ 提交于 2019-12-06 02:41:54
I have a problem with my Yii2 app. I have a advanced-app with frontend and backend parts on different domains (subdomain). I use webvimark user management module, but I think the problem is not in it. Frontend app -> domain.com Backend app -> admin.domain.com So I have problem with login in backend, it is not working. I enter login and password, and after submit form I see login form again. 'user' => [ 'identityClass' => 'webvimark\modules\UserManagement\models\User', 'enableAutoLogin' => true, 'identityCookie' => [ 'name' => '_backendIdentity', 'domain' => 'admin.domain.com', ], 'class' =>

Unhandled JS Exception: getPropertyAsObject: property '__fbRequireBatchedBridge'

╄→尐↘猪︶ㄣ 提交于 2019-12-06 01:57:36
问题 I've been having errors after errors to the point where I've reset my Metro Bundle and performed updates, errors from required module "699" to "700" have been coming up and now this. I believe I have all the required dependencies for Drawer navigator and ionicicons but errors continue to persist. I have code written in different files but below is the one written in App.js. Feel free to ask for the other ones in order to solve the issue at hand. import React from 'react'; import { View, Text,

What is the point of request.mode in the fetch API, especially with respect to cors?

你。 提交于 2019-12-05 23:17:24
Looking at the new fetch API, you can specificy a mode field in the request. From Mozilla : The mode read-only property of the Request interface contains the mode of the request (e.g., cors, no-cors, same-origin, or navigate.) This is used to determine if cross-origin requests lead to valid responses, and which properties of the response are readable. And then how to use it: var myHeaders = new Headers(); var myInit = { method: 'GET', headers: myHeaders, mode: 'cors', cache: 'default' }; fetch('flowers.jpg', myInit).then(function(response) { return response.blob(); }).then(function(myBlob) {

Get Reference of multiple Elements

寵の児 提交于 2019-12-05 23:01:05
I have this a bunch of input fields which are created dynamically <tr *ngFor="let row of rows; let rowIdx = index"> <td *ngFor="let col of columns; let colIdx = index"> <mat-form-field class="example-full-width"> <input #inputs #test type="text" placeholder="Pick one" aria-label="Number" matInput [formControl]="myControl" [matAutocomplete]="auto" (keyup.enter)="shiftFocusEnter(rowIdx, colIdx)"> <mat-autocomplete #auto="matAutocomplete"> <mat-option *ngFor="let option of filteredOptions | async" [value]="option"> {{ option }} </mat-option> </mat-autocomplete> </mat-form-field> </td> </tr> I

What is the equivalent of command “Compass watch” for LESS CSS pre-processor?

放肆的年华 提交于 2019-12-05 20:32:37
I was using SASS as CSS pre-processor for Drupal theme. Where in the command line if I use $ compass watch . It keep on watching the change in .scss file and apply to .css file. Just I am trying Bootstrap theme and there I am using LESS CSS pre-processor, Where I have to use $ lessc less/style.less css/style.css every time to apply change. What is the equivalent of $ compass watch for LESS. You need to install less-watch-compiler: npm install -g less-watch-compiler Make sure you installed less globally: npm install -g less In Terminal, navigate to your working directory path and run the

Using angularjs, how to perform math operations on textboxes and see result as the values are being typed in?

烂漫一生 提交于 2019-12-05 19:09:49
I have an HTML file with 2 textboxes, one for value and the other for quantity. The result text at the bottom multiplies value with quantity and show the result. The intention is to show the sum of all the rows of pairs of textboxes on the screen. To that end, I have an "add new" button which keeps adding additional pairs of textboxes. The first set of textboxes that appear on the HTML, reflect the size of the "numbers" array of objects containing properties "val" and "qty". The same values are bound to the textboxes. However, only the first set of values are added on screen. As I keep adding

How To Call Medium RSS Feed

邮差的信 提交于 2019-12-05 17:47:44
Medium has an RSS feed available at https://medium.com/feed/[@username] . I'm trying to fetch all my blog posts using an XMLHTTPRequest. When I test on local, I run into CORs errors. When I turn on CORs Chrome extension, I get a 401 error. Any ideas? Has anyone succeeded in calling Medium RSS? To get https://medium.com/feed/[@username] content using XHR, you can make the XHR request through a proxy of some kind. For example, trying giving your current XHR code this URL: https://cors-anywhere.herokuapp.com/https://medium.com/feed/@sideshowbarker That’ll cause the request to go to https://cors