Webner Blogs - eLearning, Salesforce, Web Development & More - Page 3 of 61

Types of Plugins in Moodle and Totara: When to Create Which One

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What are Moodle and Totara?

Moodle is a modular system. Totara extends the core structure of Moodle. The LMS is meant to handle the core necessities expected of a high-end company LMS. This means that Moodle and Totara both were built to be able to include additional Read more…

How to validate records before inserting in CakePHP 2.X

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Problem:

Sometimes we only need to validate records before inserting operations in CakePHP. In the case of bulk insertion and CSV records validation, it’s very difficult to validate individual fields of bulk records.

Solution:

array (‘validate’ => ‘only’) parameter will do exactly that for us.

Read more…

Migrations in Entity Framework 6

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Whenever a data model changes during development it gets out of sync with the current database in code first approach. The database initialization strategies that we used in our project result in loss of data whenever there are changes in model classes. The solution to this problem is migrations. By Read more…

Invisible/Zero-width characters in IE

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Introduction

In Internet Explorer, many times you might have faced issues of invalid date from Date Conversion methods or might have worked with Javascript methods for operations on data. In my case, I used some conversion operation on a date in IE, after that I had to use Read more…

RxJS (Reactive Extensions for JavaScript)

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Introduction to RxJS

RxJS is a popular library among web developers. It provides some features like functional and reactive programming patterns that support working with events and streams. Rxjs provides the functionality to write asynchronous code. The current stable version is Rxjs v6.

RxJS 6 has many advantages Read more…

Validating Downloaded File Using Selenium

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Validating downloaded files in automation testing

In the manual testing process, it is easy validating that the file is downloaded or not because the human mind is fully involved in the testing process. But in the case of automation testing, it is important to verify that the file Read more…

Font SVG icon issues in IE

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Problem

After downloading the setup of CSS for icon files (.eot, .woff, .tff.) from font awesome library, Devextreme icons, and UI operations like selecting checkboxes inside the Devextreme Datagrid were not working on IE in my c# .net web application. Although it was working correctly in all other Read more…

Laravel 5.4 Logs And Errors

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Introduction

Logfiles:

Logs are files that keep a registry or records of events, processes, messages that occur in the operating system or any software that runs.

Laravel provides the robust logging services that allow the user to log messages to file.
Laravel uses the Monolog library Read more…

PHP Best Practices

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Below are the best practices that should be followed in PHP:

1. define() vs. const

In the early version of PHP, one would use define() function to set constants. But with new updates in PHP gained one more way to declare constants as “const”. They both Read more…

Why not use JSON.stringify in JavaScript?

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Why JSON.stringify Shouldn’t Be Used To Compare Objects In JavaScript?

In javascript, equality operator == or === can be used to compare numerics and strings. But when we will compare objects using these operators, then it will not work as expected because objects use references. So, equality operators Read more…

What is Bootstrap Panel?

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Introduction

Bootstrap is a popular HTML, CSS, and JavaScript framework for developing a responsive and mobile-friendly website. It includes jumbotron, table, button, grid, form, image, alert, wells, container, carousel, panels, glyph icon, badges, labels, progress bar, pagination, pager, list group, dropdown, collapse, tabs, pills, navbar, inputs, modals Read more…

Creating Rest API in Node Js

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Rest API

Rest API is an application program interface, that uses GET, POST, PUT, DELETE data. It is referred to as a REPRESENTATIONAL STATE TRANSFER (RESTful) web service.

Creating the API

Creating Rest API in Node Js firstly needs to make a directory(mkdir restfulapi) to Read more…

OpenProject Installation, Configurations, and Upgrade

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OpenProject is an open-source web-based project management system, which is widely used for team collaboration. This application is released under the GNU General Public License Version 3 and which is continuously developed and supported by an active open-source community around the world.

→ Steps to install the Read more…

Visual Composer in WordPress

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What is Visual Composer and how to use it in WordPress?

Visual composer is a WordPress plugin that permits you to drag and drop components to create and edit your WordPress website. You can simply add new text blocks, buttons, images, etc. Simply drag the element to the Read more…

Introduction To Artificial Intelligence

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Artificial Intelligence

AI is a technique that tries to enable machines to copy human behavior. It is the study of the development of computer systems so they are able to perform tasks normally done by the human mind, such as visual perception, speech recognition, decision-making and translating Read more…

Python OpenCV

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Introduction to Python OpenCV

Python OpenCV Usage:- For main modules- run pip install OpenCV-python

cv2.imread() method

This method loads an image from the specified file and if the image cannot be read due to some error, it returns an empty matrix.
If we specify Read more…

Template-Driven Forms

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Introduction

Template-driven forms are the kind of forms in Angular. In Template Driven Forms, we specify validations using directives and attributes. In this approach, we define the template that we want to use in forms. So, this approach is called a template-driven approach. In other words Read more…

React Native Push Notification – IOS

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Push Notification

A push notification is a message that pops up on a mobile device to notify a user that a specific action has occurred in that mobile app.

Below are the steps to configure Firebase in your application (To continue with these steps, you should already have Read more…

Utmost Web Development Trends to Embrace in 2020

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Trends in Web Development

Given that eCommerce, content creation, startup development and other industries are saturated with competitive brands, developing a worthwhile website in 2020 is pivotal for success. Whether you’re a web development professional or are looking for ways to enhance your business’ website, 2020 surely Read more…

Firebase Integration With Laravel 6.x (Ubuntu 18.04)

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Below are the steps to integrate Firebase with Laravel 6.x

Step 1

To integrate Firebase with Laravel we first need a Laravel project. Create a new Laravel project using the given composer command.

composer create-project –prefer-dist laravel/laravel firebase

Step 2

Read more…