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Category: Programming

ESP8266 + Websockets = streaming data from the ESP module
  • ESP8266

ESP8266 + Websockets = streaming data from the ESP module

  • Posted on 2020-12-092021-03-07
  • by dulare

I started work that requires frequent data transmission from the ESP module. In fact – multiple ESP modules are located in various places, so I have to use the Internet…

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Geckodriver – Selenium screenshots issue
  • Programming

Geckodriver – Selenium screenshots issue

  • Posted on 2020-07-152020-07-23
  • by dulare

Have you noticed a strange issue with Selenium when trying to get an element screenshot in Firefox? Once you try to take a screenshot of a particular element on the…

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Batch copy from one image and paste in another
  • Programming

Batch copy from one image and paste in another

  • Posted on 2020-04-222020-04-24
  • by dulare

I’m right now in process of preparation of the translations to one of my clients’ sites. During this process, I have to generate tons of images for various languages. The…

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Git – why to use rebase?
  • Programming

Git – why to use rebase?

  • Posted on 2020-03-112020-03-11
  • by dulare

For most of my developer’s life, I was not aware of what git rebase is for. Oh, of course, for most of my life git was not existing. Also, I…

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ESP8266 + DS18B20 + web server
  • ESP8266

ESP8266 + DS18B20 + web server

  • Posted on 2020-03-042021-03-07
  • by dulare

I have a bunch of DS18B20 sensors in my ventilation system. The measurements are used to generate stats and to adjust the heating. From my point of view, it is…

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QuerySelectorAll and modern array functions
  • Javascript

QuerySelectorAll and modern array functions

  • Posted on 2020-02-252020-02-25
  • by dulare

The issue I want to address today is not only related to the document.querySelectorAll but also to the range of DOM related functions such as document.getElementByClassName or in general document.getElementBy[…].…

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MySQL date and time shift on a query
  • ColdFusion

MySQL date and time shift on a query

  • Posted on 2020-02-112020-02-11
  • by dulare

We noticed a strange issue when working with MySQL in ColdFusion. The date and time in the database field were set to ‘2020-01-10 00:38’ but when it reached our web…

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How to truncate table in SQLite and shrink the database
  • Programming

How to truncate table in SQLite and shrink the database

  • Posted on 2020-02-052020-02-05
  • by dulare

For my pet projects, I’m using SQLite a lot. The database engine is fast, small and serves well for small amounts of data. What is most important for me –…

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Python virtual environment in three easy steps
  • Linux

Python virtual environment in three easy steps

  • Posted on 2019-12-112019-12-14
  • by dulare

I know that the title is rather a clickbait. It should be. If you are not using virtual environments for Python, you should start. This is really easy and can…

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ColdFusion HTML Header issue
  • ColdFusion

ColdFusion HTML Header issue

  • Posted on 2019-11-292019-11-29
  • by dulare

Recently I came across an issue with setting the HTML Header in my ColdFusion code. I simply tried to add such a header: To my surprise, instead of the document…

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  • Screen Dimming After 30 Seconds on Ubuntu 24.04 – Debugging and Fix
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  • OpenAI models fine-tuning considerations
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