Fork of Cars Report

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Fork of Cars Report

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Last edited Jan 2, 2022

Created on Jan 2, 2022

This example demonstrates a simple asynchronous report generator that filters a hardcoded JSON array of five used cars by price and formats the results into a readable text list. The page uses JavaScript modules (`export`/`import`) and a `Promise` with `setTimeout` to simulate a two-second data-fetching delay before updating the initial "Hello" message in the HTML. The visible output is plain text rendered inside a `<pre>` element, with no charting or visualization library involved—focusing instead on core ES6 object destructuring, array methods (`filter`, `map`, `join`), and modular code organization.

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An example tutorial of how to use JavaScript objects, arrays, and modules.

MIT Licensed

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This example demonstrates a small asynchronous report generator that filters a hardcoded list of used cars by price and formats the results into a text display. It uses JavaScript Promises to simulate a two-second data fetch via `getCars`, then applies array methods like `filter` and `map`, and a custom `formatCar` function to produce a readable list. The page updates a `<pre>` element’s text content, initially showing “Loading…” until the data resolves. The code relies on ES modules (`import`/`export`) and JSON parsing to structure the data flow.

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This fork demonstrates a simple JavaScript report generator using ES6 modules and asynchronous data loading. It parses an embedded JSON array of five cars, filters them by a price threshold, and formats each result as a string with year, make, model, and price. The `getCars()` function returns a Promise that resolves after a two-second delay, simulating an API call. The final report replaces a “Loading...” message in the page’s `<pre>` element, showcasing object destructuring and array methods like `filter` and `map`. The example also includes a separate test file that accesses car data directly.

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This example demonstrates a JavaScript-based data report that filters a list of cars by price and formats the results into a readable text presentation. The visualization uses the Promise-based `getCars` function to asynchronously retrieve a hardcoded JSON array of five car objects, then applies a filter for cars priced under 2000 and maps each entry to a formatted string. The final message, which initially displays "Loading..." before the data arrives, is rendered in large type via the `textContent` property of an HTML `<pre>` element. The modular structure uses exported functions (`formatCar`, `generateReport`) and relies on standard JavaScript array methods like `filter`, `map`, and `join` for processing.

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This example demonstrates a JavaScript workflow that fetches car data and dynamically generates a formatted text report. It shows how modular code separates data retrieval, formatting, and report generation. The page initially displays “Loading...” and then presents a list of cars priced under $2,000, using a Promise with `setTimeout` to simulate an asynchronous API call. The implementation relies on ES6 modules, `JSON.parse` for handling embedded data, array methods like `filter` and `map`, and template literals for string construction. The visual output is plain text rendered directly into an HTML `<pre>` element.

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