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Why We Can't Stop Trading (And Why That's A Good Thing!)

Trading is a uniquely human trait that sets us apart from other species.
Humans engage in deliberate exchange, unlike animals who primarily rely on direct action or affection.
Trading allows for mutual benefit through specialization and division of labor.
The drive to trade is deeply rooted in human evolution, enabling specialization, innovation, and societal progress.

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Dev

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Python While Loop Examples

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3 6 9 12 15
1 3 5 7 9 2 4 6 8 10
10 8 6 4 2
9 7 5 3 1
1 2 3 4 5 6 7 8 9 10
1 RED BLUE RED 5 REDBLUE 7 RED BLUE RED

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Managing Transactions in Java Web Applications

A transaction is a sequence of operations that is treated as a single logical unit of work.
Transaction management is crucial for ensuring data integrity and consistency in Java web applications.
Java Database Connectivity (JDBC) is the basic way to manage transactions manually in Java.
In Java EE, the Java Transaction API (JTA) is used for distributed transactions across multiple resources.

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Creating Stripe Test Data in Python

Creating sufficient test data in Stripe for AI+data course to show how to build an AI chatbot by moving e-commerce data from Stripe into PGVector running on Supabase, via Airbyte PGVector connector to create OpenAI embeddings.
A few sample datasets can be loaded by using the CLI fixtures command, but these did not fit the need for a larger dataset.
Creating sample data in Stripe sandbox using the python client provided by Stripe.
Functions were added for each of the data types in Stripe that were needed like sample customers, products, prices and purchases.
Collab Python script is super easy to insert test data into Stripe with the help of API.
Data can then be hooked up to Airbyte using the Connector Builder to map API endpoints to streams for each data type and set up a sync job.
Problem solved! Collab Python script is super easy for the learner to insert test data into Stripe.
Online or workshop learners can easily insert the substantial sample dataset available to interact with AI chatbot question.
The data can be used for questions like “who made the cheapest purchase? How much did they pay, and what did they buy?“
Random names for customers, products, and colors were generated in order to insert data into Stripe.

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Dev

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Customizing React Components with Props 🚀

Today, the author delved into the world of props in React.
They set up a new React project and created custom components.
Props were passed to components, and lists of data were rendered.
The author learned about PropTypes, default props, and styled the components.

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Medium

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Java’s Stream.sorted() Method Explained

The Stream.sorted() method has two variations that cater to different sorting needs:
This variation sorts the stream elements based on their natural order, defined by the Comparable interface.
This version allows a custom comparator to define the sorting logic.
The lazy evaluation allows the Stream API to optimize operations, potentially reducing memory usage and computation time.
Sorting custom objects often requires a comparator to specify the attribute to sort by.
Streams containing null elements can throw a NullPointerException when using natural order sorting.
Sorting streams with mixed types (e.g., numbers and strings) will result in a ClassCastException if relying on natural order sorting.
Sorting large datasets can lead to performance issues or memory constraints.
Using parallel streams can improve performance for large datasets by utilizing multiple CPU cores.
The Stream.sorted() method in Java offers a dependable way to sort data streams.

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How to build your own app.

Conceptualize your app by defining its purpose, researching the market, and identifying its features and platform.
Plan your app development by creating a roadmap and wireframing its design.
Choose the right tools and technologies for development, including native or cross-platform options, backend languages, and frontend frameworks.
Design a user-friendly UI and ensure a smooth UX through wireframes, prototypes, and user testing.
Develop your app by coding the front end, setting up the backend, integrating with third-party services, and implementing testing processes.
Test your app manually and automatedly, perform performance testing, and prepare it for deployment.
Engage in post-launch activities such as marketing, monitoring analytics, and fixing bugs and updates.
Maintain and improve your app by gathering user feedback, releasing updates, and monitoring the market.
Use various development tools and resources such as design tools, development environments, version control systems, project management tools, and APIs.
Follow tips for success, including starting small, iterating based on feedback, securing your app, and designing for scalability.

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Medium

125

4 Websites to Make Money Doing Something You Love

Fiverr is a platform where freelancers can offer services starting at $5.
Udemy is an online learning platform where you can create and sell courses.
Etsy is a marketplace for creatives to sell handmade, vintage, or unique items.
TaskRabbit connects people who need help with everyday tasks to those who can complete them.

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Dev

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Create a BMI Calculator with Free Source Code

Create a BMI Calculator with Free Source Code
Highlights:
Interactive interface for quick BMI calculations.
User-friendly design with a responsive layout.
BMI guide included for better understanding.
Free Source Code: Clone the GitHub repository to get started: git clone https://github.com/Safdar-Ali-India/BMI-Generator
Setup Instructions: Open index.html in a browser. Adjust the layout in styles.css for a custom design. Explore BMI conditions in script.js.
Future Enhancements: Add support for imperial units (feet and pounds). Save user inputs with local storage. Create a graphical BMI range chart.
Start building your BMI Calculator today!

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Dev

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Rust: Variations of a Thing - Enums

Enums in Rust are a type of data structure useful for enumerating possible variants of something.
Enums can contain data, making them flexible and customizable.
To use an enumeration, match keyword is used to access and manipulate the data contained in the enum.
Enums are a core part of Rust's powerful type system and are used for creating custom data types.

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Medium

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How Python’s Descriptor Protocol Implements Attribute Access

The descriptor protocol is a fundamental mechanism in Python that governs how attribute access — retrieval, assignment, and deletion — is handled.
It operates through a set of specially defined methods that are implemented in a class, enabling precise control over the behavior of attributes.
These methods, __get__, __set__, and __delete__, are invoked automatically during attribute access operations when a descriptor object
__get__ method when obj.attr is accessed. This overrides the default behavior of retrieving the value directly from the instance's __dict__.
When an attribute is accessed, Python executes a series of well-defined steps to resolve the attribute's value.
Descriptors are typically defined at the class level, meaning they exist as part of the class definition
A descriptor is classified as a data descriptor if it defines the __set__ method or the __delete__ method
data descriptors, by implementing __set__, control both retrieval and assignment of attributes, bypassing the instance’s __dict__.
non-data descriptors, which lack __set__, allow instance attributes to take priority over the descriptor.
This architecture underpins many core Python features, such as property objects and method binding, offering fine-grained control over how attributes behave.

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Medium

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Understanding Large Language Models(LLM’s): How They Work and Why They Matter

Large Language Models (LLMs) are AI models trained to process and generate text using massive datasets.
LLMs understand patterns of language to predict the next word in a sentence or generate coherent text.
They work using neural networks, mimicking the human brain's functioning.
LLMs are important for various applications like natural language processing and generating human-like text.

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Prodevelopertutorial

192

Count the number of 1’s in an array sorted in decreasing order.

The given problem is to count the number of 1's in an array that is sorted in decreasing order.
To solve this problem, we can use binary search.
We find the last occurrence of 1 in the array and return its index + 1 as the result.
If the mid index is not the last index of 1, we move towards the right half; otherwise, we move towards the left half.

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Prodevelopertutorial

254

Search An Element in Bitonic Array

The problem is to search for an element in a bitonic array.
A bitonic array is an ascending sorted array that starts descending after a particular element.
The solution involves finding the peak element in the bitonic array using binary search.
Then, a binary search is performed in the ascending and descending halves of the array to search for the given element.

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Prodevelopertutorial

271

Find maximum element in Bitonic Array

Given a bitonic array, the task is to find the maximum element.
A bitonic array is an ascending sorted array that starts descending after a particular element.
The problem can be solved using binary search technique.
The maximum element in the bitonic array is found by comparing mid element with its neighboring elements.

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