What is fetch?
Fetch is a JavaScript API that allows you to make asynchronous network requests.
How do I use fetch in my code?
You can use the fetch() function with the appropriate parameters to make a network request.
What types of requests can I make with fetch?
Fetch supports all types of HTTP requests, including GET, POST, PUT, DELETE, etc.
What does "asynchronous" mean?
Asynchronous means that the code execution does not need to wait for the network request to complete before moving on to the next step.
What are the parameters for the fetch() function?
The fetch() function takes in at least one parameter, the URL of the request. It can also take in an optional second parameter for any custom settings.
How do I handle errors in fetch requests?
You can use the .catch() method to handle any errors that may occur during the fetch request.
What is a response?
A response is the result of a fetch request, which includes information from the server.
Can I use fetch in both client-side and server-side code?
Yes, you can use fetch in both client-side and server-side code.
How do I access the response data in my code?
You can use the .then() method and its corresponding .json(), .text(), or .blob() methods to access the response data.
What happens if the fetch request fails?
If the fetch request fails, the .catch() method will be called and any errors will be handled.
Is fetch supported in all browsers?
Fetch is not supported in Internet Explorer, but it is supported in all other modern browsers.
How do I check the status code of the response?
You can use the .status property on the response object to check the status code.
What is the difference between the .then() and .catch() methods?
The .then() method is used to handle a successful response, while the .catch() method is used to handle errors in the request.
Can I cancel a fetch request?
No, fetch requests cannot be canceled once they have been sent.
How do I set custom headers in my fetch request?
You can use the second parameter of the fetch() function to include any custom headers in your request.
Can I use fetch to upload files?
Yes, fetch supports file uploads using the FormData() object.
How do I handle cross-origin requests with fetch?
You can use the CORS mechanism or a proxy server to handle cross-origin requests with fetch.
Can I make multiple requests with one fetch call?
Yes, you can use the Promise.all() method to make multiple requests using one fetch call.
What is a CORS error?
CORS stands for Cross-Origin Resource Sharing and it is an error that occurs when trying to access resources from a different origin.
How do I fix a CORS error?
You can fix a CORS error by either enabling CORS on the server or using a proxy server.
What is a JSON parsing error?
A JSON parsing error occurs when the response data cannot be converted to JSON format.
How do I handle a JSON parsing error?
You can use the .catch() method to handle the error and use the .text() method to access the response data as text instead of attempting to convert it to JSON.
What is a 404 error?
A 404 error means that the requested resource was not found on the server.
How do I debug a fetch request?
You can use your browser's developer tools to check the network section and see the details of your fetch request.
What is an API?
An API (Application Programming Interface) is a set of protocols, tools, and definitions for building software applications.
How do I check if my fetch request is successful?
You can use the .ok property on the response object to check if the request was successful.
Can I use fetch with a secure SSL connection?
Yes, fetch supports secure SSL connections.
