d3-timer memory leak

100%

d3-timer memory leak

✓ Published0🌍 Public

Last edited Jun 17, 2021

Created on Jun 17, 2021

This example demonstrates a memory leak in d3-timer by creating a timer that runs indefinitely with a 150-millisecond delay. The page loads the d3-timer library from a CDN and instantiates a timer via `d3.timer()`, passing an empty callback that executes on each tick. The visualization shows how a timer persists without explicit disposal, highlighting potential performance issues in long-running applications. The code uses plain HTML and JavaScript with no rendering, making the leak’s behavior visible through browser developer tools rather than visual output.

AI-generated description

A bare minimum HTML page demonstrating use of CSS and JavaScript.

Similar vizzes

Loading thumbnail…

timer_application

A timer application displays a running year counter that starts at 1984 and increments annually, looping back to 1984 after reaching 2014. The large year text updates with different animation speeds and easing effects depending on the current year. Built with D3.js version 3.5.5, the visualization loads BMI data from a TSV file using `d3.tsv` and animates the year text via `transition` and `tween` methods, though the loaded data is not actually visualized in the displayed output.

BBenHeubl

61% match

Loading thumbnail…

Untitled

A tiny SVG viewport shows 1,000 randomly placed circles bouncing and wrapping around its edges, with a live frames-per-second counter in the corner. The animation runs through `d3.timer`, updating each circle’s `cx` and `cy` attributes based on randomized velocity values. All rendering uses SVG elements and D3’s data join, with positions recalculated on every tick to keep the motion continuous.

KKanishk Mamgain

61% match

Loading thumbnail…

Timeline

This example shows a web page titled “Timeline” that displays the text “Hello HTML” in large, centered type, alongside a “Hello JavaScript!” message logged to the browser’s console. The page loads D3 v5 and Moment.js from CDNs, but the code does not yet implement any visualization or timeline functionality. It uses plain CSS for styling and JavaScript for console output, serving as a minimal scaffold for future data-driven timeline work. The React starter project is referenced as a related alternative.

Eetypeemos

60% match

Loading thumbnail…

Hello React + D3!

This example demonstrates a reusable React component that integrates with D3 to render animated SVG graphics. Dynamic data updates every second, repositioning circles while diagonal lines are redrawn to follow the resizing viewport. The code uses D3 v4 transitions for smooth attribute changes, React's lifecycle methods (`componentDidMount`, `componentWillUnmount`) for setup and cleanup, and a `setInterval` to update the visualization. It also responds to window resizing and keyboard input to toggle the graphic's visibility.

CCurran Kelleher

59% match

Loading thumbnail…

Untitled

This example demonstrates how D3 custom elements can drive a canvas-based drawing surface. As the mouse moves, the code appends `custom:circle` elements to a `custom:sketch` element, each with a red stroke that transitions to white over two seconds while expanding to a radius of 200. A `d3.timer` continuously clears the canvas and redraws all child elements, translating their attributes into Canvas 2D `arc` and `stroke` commands. The sketch uses a custom namespace prefix registered with `d3.ns.prefix` to create these elements.

YYashasvi Koul

59% match

Loading thumbnail…

D3 Learning

This example demonstrates a blank SVG canvas with no visible data or visualization. The code loads D3.js v5 alongside a React-based bundle, setting up an empty 960×500 SVG element within an HTML page. The accompanying `index.js` and `style.css` files contain no renderable logic, leaving the visualization gallery entry as a minimal scaffold. It illustrates a bare-bones D3 and React integration template rather than an active chart, with no data source, simulation, or rendering invoked.

SSumit Tokkar

59% match

Loading thumbnail…

D3

This example showcases a D3 visualization rendered as an SVG within an HTML page, loading the d3.v5 library from a CDN. The code sets up an SVG canvas of 960 by 500 pixels and includes a linked stylesheet, suggesting styled output. The visualization depends on an external JavaScript module (`/js/main.js`) that likely leverages D3’s core APIs to generate the graphics, though the specific chart type or data source is not visible in the provided files.

CCody Shaner

59% match

Loading thumbnail…

Untitled

This example presents an interactive data visualization built with the d3.v4 library and embedded in a React framework. It renders a graph within a designated div element, loading D3.js from a CDN. The visualization appears to be a network or node-link diagram, though the specific data source is not identified in the provided files. The code sets up a blank canvas for the visualization, and the actual plotting logic would use D3’s force simulation or layout functions to position elements. The implementation relies on standard HTML and JavaScript, with CSS handling the visual styling.

SSheela2930

59% match