Django → Django - Tutorial 031. Change URL without reloading the page with partial content loading

Django, URL, JavaScript

The less information a site has to transmit to each request, the better. Because we get less load on the server and on the communication channel. The first such improvement on the site I did was loading the list of …

JavaScript → JavaScript - How to extract a parameter from a URL

JavaScript, URL

During the development of the site, small tasks arise, for example, how to extract a parameter from the URL.

For example, we have a URL like this:

http://www.example.com/?page=24&info=13

The parameters in this case are page and info .

To solve …

Django → Django - Tutorial 030. Opportunities VDS server for $ 5 for the project on Django

Ubuntu, Django, VDS

With the growth of site functionality, as well as attendance, it was possible to successfully test the capabilities of the current VDS server, which I currently use. I would like to describe my experience with VDS, as well as show …

C++ → C ++ - Tutorial 012. static_assert, checking for errors at compile time

C++11, static_assert

Exceptions are thrown during the execution of the program; if the error can be found at compile time, you can use static_assert , which tells you to correct the program code in key locations.

The use of static_assert will look …

Django → Django - Tutorial 029. Adding private messages and chats on the site - Part 1

чат, message, Django, chat, сообщение

According to the tradition, I will tell you about my experiences on the introduction of new functionality on the site. At the moment, this functionality is a personal message between users. Of course, this now does not work as well …

Qt → Idiom "type erasure" on the example of QWidget

Type erasure idiom

The article assumes that the reader has basic knowledge of C++

Straight to the point.

Suppose you need to dynamically (like me, on button click) change the text
several objects such as:

1. QLabel
2. QPushButton
3. QLineEdit

Most of …

Qt → Writing a custom Qt 3D aspect - part 2

Qt 3D, OpenGL, C++, Qt

Introduction

In the previous article we reviewed the custom aspect creation process and showed how to create (most of) the front-end functionality. In this article, we will continue to build our user facet by implementing the appropriate backend types, registering …

QML → QML - Tutorial 035. Using enumerations in QML without C ++

QML, enum, enumerations

Well, finally they finally got it !!! There was an opportunity to declare enums immediately in QML without dancing with C ++. How to add your enumerations to QML through C ++ I described in this article . In fact, …

Qt → Qt/C++ - Tutorial 074. Generating pseudo-random numbers, using STD library random

qsrand, QRandomGenerator, Qt, Random, C++11, qrand

Generating random numbers may be needed, for example, to calculate weapon damage in a computer game or to represent a graph from random numbers.

Qt provides the qrand function for generating random numbers, and also, starting with Qt 5.10 , …

Qt → Qt 5.10 Release

Releases, Qt5, Qt 5.10

Qt developers have announced the release of Qt 5.10, which is marked by the introduction of new functionality, as well as the release of Qt 3D Studio.

Qt 3D Studio

As the name suggests, Qt 3D Studio is a graphics …

QML → Say hello to Qt Quick pointer handler

QML, Qt Quick

We know that over the years Qt Quick's multi-touch support has been inadequate in many of its use cases. We have a PinchArea , to handle zooming, rotating and dragging with two fingers; and MultiPointTouchArea , which can be used …

Django → Django 2.0 release

Releases, Django

The Django team announced the release of Django 2.0

This release starts with free-form semantic versioning in Django, but there are no significant backward compatibility changes (except that Python 2.7 has been removed), which was expected in the 2.0 release. …