2 - Select a Group of Elements - Data Visualization with D3 - freeCodeCamp Tutorial

This covers selecting multiple html elements with the d3 selectAll method, and returning them as an array to work with.

Link to challenge: https://www.freecodecamp.org/learn/data-visualization/data-visualization-with-d3/select-a-group-of-elements-with-d3 Concepts:

d3.selectAll(selector) Selects all elements that match the specified selector string. The elements will be selected in document order (top-to-bottom). If no elements in the document match the selector, or if the selector is null or undefined, returns an empty selection. https://github.com/d3/d3-selection/blob/v1.4.1/README.md#selectAll ————————————————————————————————————- D3.js (also known as D3, short for Data-Driven Documents) is a JavaScript library for producing dynamic, interactive data visualizations in web browsers. It makes use of Scalable Vector Graphics (SVG), HTML5, and Cascading Style Sheets (CSS) standards.

freeCodeCamp (also referred to as “Free Code Camp”) is a non-profit organization that consists of an interactive learning web platform, an online community forum, chat rooms, online publications and local organizations that intend to make learning web development accessible to anyone. Beginning with tutorials that introduce students to HTML, CSS and JavaScript, students progress to project assignments that they complete either alone or in pairs. Upon completion of all project tasks, students are partnered with other nonprofits to build web applications, giving the students practical development experience.

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