What is the Fetch API and how do I use it?
Asked on Aug 18, 2024
Answer
The Fetch API is a modern interface that allows you to make network requests similar to XMLHttpRequest (XHR) but with a more powerful and flexible feature set. It is promise-based, making it easier to work with asynchronous operations.
<!-- BEGIN COPY / PASTE -->
fetch('https://api.example.com/data')
.then(response => {
if (!response.ok) {
throw new Error('Network response was not ok');
}
return response.json();
})
.then(data => {
console.log(data);
})
.catch(error => {
console.error('There was a problem with the fetch operation:', error);
});
<!-- END COPY / PASTE -->Additional Comment:
✅ Answered with JavaScript best practices.- The Fetch API uses promises, which means you can use "then" and "catch" for handling responses and errors.
- The "fetch" function takes a URL as an argument and returns a promise that resolves to the response.
- Always check "response.ok" to ensure the request was successful before processing the data.
- Use "response.json()" to parse the JSON data from the response.
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