Gavin Wiggins

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This page contains my notes on various programming and tech related topics. Subscribe to the JSON feed or follow me on Mastodon to get notified about new posts.

Recent

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My recent notes are listed below. See the Archive section below for all of my notes.

Archive

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Here is an archive of all of my notes organized by tag.

cpp git javascript julia python rust swift swiftui terminal

cpp

• Clang on macOS
• Command Line Arguments in C++
• Hello World in C++
• Include a Function from a C++ File
• Numbers in C++
• Strings in C++
• Two-Dimensional Array in C++
• Use CMake to Build a C++ Project
• Use CMake to Build and Install a C++ Project

git

• Git Commands

javascript

• Create a JavaScript Environment with Node
• Fizz buzz in Javascript
• Input Numbers with JavaScript
• JavaScript Modules
• Plotly Graphs in JavaScript
• Render a Chart.js Graph with Quart and htmx
• Scroll Columns with JavaScript
• Select Results with JavaScript
• Select Units with JavaScript
• Strings in JavaScript
• Use JavaScript to Load HTML Content

julia

• Arrays in Julia
• Conditional Statements in Julia
• Debugging Julia Code
• Dictionaries in Julia
• Docstrings in Julia Code
• Functions in Julia
• JSON Parsing with Julia
• Loops in Julia
• Modules for Julia Code
• Strings in Julia
• Testing Julia Code
• Tuples in Julia

python

• Animation with Matplotlib
• Bokeh Graphs and Htmx with Flask
• Boolean Indexing with NumPy
• Cache Function in Python
• Cached Class Property in Python
• Clip Array Values with NumPy
• Command-line Arguments with Python
• Compare inv and solve Functions in NumPy
• Conda Environments
• Configuration Using a Python dataclass
• Contour Plot Smoothing with Matplotlib
• Count Letters with Python
• Counter in Python
• cProfile for Python Code
• Dask Arrays
• Debugger in Python
• Dedent Text with Python
• Delay Log File Creation
• Dictionaries in Python
• Doctest with Python
• Download Files with Requests
• Dynamic Package Import in Python
• Dynamic Python Class from TOML
• FastAPI Router for Path Operations
• Fizz Buzz in Python
• Flask App Configuration with Dotenv
• Form Input with Htmx and Flask
• Full Array in NumPy
• Gauss-Legendre Points and Weights with NumPy
• GET Request with Quart and htmx
• Imshow Plot with Matplotlib
• Index of Max Value with NumPy
• JSON with Python
• Lists in Python
• Loop Over Columns with NumPy
• Makefiles for Python Projects
• Matshow Plot with Matplotlib
• Maximum Array with NumPy
• Memory Usage of a Large NumPy Array
• Mosaic Grid of Plots with Matplotlib
• Open JSON File in Tkinter
• Parsing XML with Python
• Plotly Graph Restyle with Flask
• Plotly Graphs and Htmx with Flask
• Pre-allocate a Python List
• Protocols in Python
• Python Package Name
• Python Package with Data
• Python Projects with uv
• Quart Application with HTTPX Client
• Ray Actors
• Ray Functions
• Render a Chart.js Graph with Quart and htmx
• Request-Reply Pattern with PyZMQ
• Run Dask Code as a Script
• Run Python Scripts with uv
• Save and Load NumPy Arrays
• Secrets in Python
• Server Setup for a Python Quart App
• Set Difference of Two NumPy Arrays
• Sorted List of Items with Python
• Sparse Diagonal Matrix with SciPy
• Streamlit CLI Entry Point
• Strings in Python
• Sync and Async HTTPX Comparison
• Test Examples with Python
• Testing a Python Configuration Module
• Testing a PyZMQ Client and Server
• Tkinter Application
• Tkinter Theme with ttkbootstrap
• Tkinter with the CustomTkinter Theme
• Tuples in Python
• Unittest CSV Files with Python
• Update a Webpage with Ajax and Flask
• Update Label Text in Tkinter
• Use Sets and Dictionaries for Fast Lookup
• Version Number in Python
• View Data with Matplotlib in Tkinter
• Virtual Environments

rust

• Arrays and Vectors in Rust
• Compile and Run a Rust File
• Enums in Rust
• FizzBuzz in Rust
• Hash Maps in Rust
• If Expressions in Rust
• Numbers in Rust
• Rust Functions
• Rust Loops
• Rust References
• Slices in Rust
• Strings in Rust
• Structs in Rust
• Tuples in Rust

swift

• Absolute Value with Accelerate
• Array of Random Numbers in Swift and Accelerate
• Arrays in Swift
• Basic Triangle in Metal
• Clear Color in Metal
• Color View with Metal Compute Kernel
• Command-line Arguments in Swift
• Complex Multiplication with Accelerate
• Create a Swift Package
• Credits for a Mac App
• Date Formatting in Swift
• Defaults Command Line Tool
• Directory Contents with Swift
• Discardable result
• Element-wise Array Addition in Swift, Accelerate, and Metal
• Flat Indexing an N-dimensional Array
• Image from Array Data in Swift
• Image from Colormap Filter in Swift
• Matrix Multiplication with Accelerate
• Matrix Multiplication with Metal
• Measure Elapsed Time of Swift Code
• Noise with Metal
• Normalize Array Values in Swift
• Package a Swift Library
• Particles Using Metal
• Range in Swift
• Reverse Array Elements using Accelerate
• Sampler in Metal
• Sort Array Values with Accelerate
• Strides in Swift
• Strings in Swift
• Suppress Print Output in Swift
• Swift Compiler Optimizations
• Swift Dictionaries
• Use Sets and Dictionaries for Fast Lookup

swiftui

• AppStorage in SwiftUI
• Async Loop in a SwiftUI View
• Blur Effect in SwiftUI
• Button Styles with SwiftUI
• Cursors in a Mac App
• Default Size in SwiftUI
• Display Scale of a SwiftUI Environment
• Grid Lines in SwiftUI
• Heat Maps with SwiftUI and Charts
• Image from a Colormap Filter
• LabeledContent in SwiftUI
• Line Graphs with SwiftUI and Charts
• Menu Items with SwiftUI
• NSPasteboard with SwiftUI
• Open a Window with SwiftUI
• Path Markers in SwiftUI
• Picker Control with SwiftUI
• Preferences Window with SwiftUI
• ProgressView with SwiftUI
• ScrollView with SwiftUI
• Sidebar DisclosureGroup with SwiftUI
• Sidebar Toggle with SwiftUI
• Sine Wave in SwiftUI
• Stepper in SwiftUI
• SwiftUI Images and Symbols
• SwiftUI Label
• SwiftUI ViewBuilder
• Tables in SwiftUI
• Text in SwiftUI
• TextField in SwiftUI
• Three Column NavigationView in SwiftUI
• Toggle SwiftUI Animation
• Toolbar Dropdown with SwiftUI
• Two Column NavigationSplitView with SwiftUI
• Two Column NavigationView in SwiftUI
• View Tap Gesture in SwiftUI
• WebView in SwiftUI
• Window and Toolbar Style in SwiftUI
• Window Resizability in SwiftUI

terminal

• Ghostty Configuration
• Initialize a Server with Cloud-init
• LazyVim Configuration
• Reverse Proxy and Basic Auth with Caddy
• Server Setup for a Python Quart App
• Terminal Commands for macOS
• Tmux Commands

Gavin Wiggins © 2026
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