Today, I am excited to introduce Hisaab (Daily Expense Tracker) Android app which supports speech recognition for quick input and works OFFLINE also. It will help you to note your incomes/expenses and calculate the total amount quickly. You can classify income and expenses by categories and payment methods. Also, you can search and view different reports.
TensorFlow 2: Convolutional Neural Networks (CNN) and Image Classification
This article explains a breif introduction of CNN and about how to build a model to classify images of clothing (like T-shirt, Trouser) using it in TensorFlow. If you are beginner, I would recommend to read following posts first:
– Setup Deep Learning environment: Tensorflow, Jupyter Notebook and VSCode
– Tensorflow 2: Build Your First Machine Learning Model with tf.keras
#TechBrijTips Subscribe
Do you want to know what technologies (CMS, frameworks, platforms) are used on website?
Check out wappalyzer and its Chrome extension. Easy way to detect the environment used behind the website.
In Ubuntu/Linux, It is not so easy to draw flowchart and diagrams. Thanks to draw.io – free online diagram software for making flowcharts, UML, process & network diagrams..etc.
Very easy to use and highly recommended!
1Password Checkup extension by Google: A must have Chrome extension to get alert if your username and password for wherever you sign-in is no longer safe due to appearing in a data breach. It helps you resecure accounts that were affected by data breaches.
TensorFlow 2: Linear Regression
This article will explain brief summary of linear regression and how to implement it using TensorFlow 2. If you are beginner, I would recommend to read following posts first:
– Setup Deep Learning environment: Tensorflow, Jupyter Notebook and VSCode
– Tensorflow 2: Build Your First Machine Learning Model with tf.keras
TensorFlow 2: Build Your First Machine Learning Model with tf.keras
This article explains how to build a neural network and how to train and evaluate it with TensorFlow 2. It is assumed you know basics of machine & deep learning and want to build model in Tensorflow environment. We are going to use tf.keras APIs which allows to design, fit, evaluate, and use deep learning models to make predictions in just a few lines of code.
Setup Deep Learning environment: TensorFlow, Jupyter Notebook and Visual Studio Code
Few days back, I decided to setup development environment for deep learning on my Windows 10 laptop. In this article, I would share my experience in setting up a system typically for Data Science developers. Although I used Windows 10 but the steps will be same for Linux and Mac OS.
Being a developer, need IDE for coding and not fan of browser based editor. Jupyter Notebook is favourite tool for data scientist and we can’t skip that in case of data science. Fortunately, VS Code supports Jupyter notebook. You can now directly edit .ipynb files and get the interactivity of Jupyter notebooks with all of the power of VS Code. We will go through it.
Python: Data Visualization With MatPlotLib
This article explains how to perform different types of data visualizations in Python using Matplotlib – a Python 2D plotting library. Instead of covering features of the library, we will see the practical scenarios of data visualizations used in machine learning/deep learning. We will import pyplot function that allows us to interface with a MATLAB-like plotting environment.
To install Matplotlib, run following command in Python environment:
pip install matplotlib
I am using Python 3.7.6, Matplotlib 3.1.2 and Windows 10 environment for this article.
Python: Ternary Conditional Operator
For a developer, Ternary operator is one of favorite thing to make the code compact and easily readable. This article explains different ways to implement Ternary operations.
In other languages like Javascript, ?: symbols are used for ternary operations.
<condition> ? <expression_on_true> : <expression_on_false>
Python 2.5+ added following syntax:
<expression_on_true> if <condition> else <expression_on_false>
expression_on_true will be evaluated if the condition is true, otherwise expression_on_false will be evaluated.
Validating JSON with JSON Schema using Postman, AJV and BrijPad
Do you want to validate JSON response of your application REST APIs? For a large JSON, it is easy to use JSON schema for validation. In this post, we will see how to validate JSON response with JSON Schema in Postman using ajv validator. BrijPad – Online tool allows you to generate and validate JSON Schema. We will use it to generate Schema.
Read Also: Inspect JSON Easily with BrijPad
Inspect JSON Easily with BrijPad 2.0 (New Features)
For a web developer, it is common to view & analyze the JSON returned by an API to the browser and generally, Chrome Developer tools is used for this. You can click on Network tab, select the XHR item and can get JSON in Response and Preview tabs in Chrome developer tools. Fortunately, there are quite a few free online JSON viewers that you can use. Now, BrijPad 2.0 also allows you to inspect and analyze JSON quickly. You can paste the JSON code and visualize the data. I saw many online tools but didn’t get any tool which filters JSON by selecting field in TreeView (It is very helpful in case of large JSON) so I decided to implement it and added it in BrijPad 2.0.
Read Also: Chrome Developer Tools: Inspect JSON path and extract data quickly
WordPress: Customize Title in RSS Feed and Get it from Excerpt
Recently, I introduced #TechBrijTips, A micro-blogging section on this website which has content like twitter posts. It is different from regular blog posts as it doesn’t have any specific title. So I had a question what to display in the RSS feed of WordPress. It doesn’t look good to me to display first few words of the main content. I decided to display title from Excerpt. In this post, we will see how to implement it.
Introducing #TechBrijTips for Micro-blogging
The beauty of Microblogging is that you can express yourself in lesser words and can share frequent and brief information on web. As its name suggests, a microblog post is based on micro (i.e. short) post. It requires less time and effort. Ideas, information and thoughts can be shared instantly once they come into your mind. So, I decided to setup Microblogging platform on TechBrij and added #TechBrijTips section to share knowledge, tips, the latest news and useful resources related to web development. As it needs less time to spend on researching a specific topic, being a part time blogger, it will be helpful to increase community and reader engagements.
RabbitVCS: A TortoiseGit for Ubuntu
I am fan of TortoiseGit on Windows as Git client. It displays icons on files and folders of the repository in file explorer which is easy to know the status. You can perform different repository operations in the explorer itself without open a standalone app for Git. Nowadays, I am using Ubuntu so much. So, I need the same in Ubuntu 18.
On googling, I found RabbitVCS. It is a graphical front-end for version control systems available on Linux and it integrates into file managers to provide file context menu access to version control repositories like TortoiseGit.
Deploying Smart Contract and Node.js App [Full Stack Ethereum Dapp Part-5]
In Part 1 to 4, we went through solidity to develop smart contract in Remix, setup development environment, created unit testing methods for smart contract, created a front-end application with Node.js to interact with smart contracts. Now, we will deploy smart contract using truffle and infura. Also, will deploy Node.js application to Heroku.
Creating Web App for Smart Contract [Full Stack Ethereum Dapp Part-4]
In Part-3, we created unit test methods for smart contract. Now, we will create a simple webpage to interact with the smart contract. The goal is to create a page with a textbox to enter name, buttons to save name and to get message.
Unit Testing On Smart Contract with Truffle [Full Stack Ethereum Dapp Part-3]
In Part-2, we deployed our smart contract on local private Ethereum blockchain. Now, we will test out our Solidity smart contracts behaviour with unit testing with Truffle which uses Chai and Mocha frameworks. In web development lifecycle, unit testing is needed to do to ensure the code is working the way as it is expected. So let’s start it by creating a test file by running following command: