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Fetch API: Making Basic Network Requests

Source: developer.mozilla.orgbeginner

The Fetch API is like ordering from a catalog: you give it a URL and get a promise of delivery. It's used to load data from APIs without a page reload. The footgun: the promise resolves even on HTTP errors (like 404); you must check.

The Fetch API is your browser's tool for network requests. Think of `fetch(url)` as placing an order: you get back a `Promise` that resolves to a `Response` object once headers arrive. It's the modern standard for getting data from a backend API, replacing `XMLHttpRequest`. The biggest footgun: the `fetch` promise does *not* reject on HTTP errors like 404 or 500. You must manually check the `response.ok` property to confirm the request was successful before processing the data.

Read the original → developer.mozilla.org

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Fetch API: Making Basic Network Requests · Tezvyn