XMLHttpRequest‘ object or the newer ‘
fetch()‘ method. In this article, we’ll cover both methods and discuss their advantages and disadvantages.
In the code above, we create a new ‘
XMLHttpRequest‘ object and call the ‘
open()‘ method to initialize a new HTTP request. The first argument is the HTTP method, which in this case is ‘
GET‘. The second argument is the URL we want to send the request to.
After we’ve opened the request, we set the ‘
onload‘ event handler to a function that will be called when the server responds. In this case, we’re checking the response status to make sure it’s ‘
200‘ (OK), and then we’re parsing the response text as JSON and logging it to the console.
Finally, we call the ‘
send()‘ method to send the HTTP request.
Advantages of XMLHttpRequest
One advantage of using ‘
XMLHttpRequest‘ is that it’s been around for a long time and is widely supported in all modern browsers. Additionally, it gives you more control over the HTTP request, such as setting custom headers, and it supports sending and receiving binary data.
Disadvantages of XMLHttpRequest
One disadvantage of ‘
In this code, we call ‘
fetch()‘ with the URL we want to send the request to. This returns a promise that resolves to the Response object representing the server’s response.
We then call the ‘
json()‘ method on the Response object to parse the response as JSON. This returns another promise that resolves to the parsed JSON data.
Finally, we log the parsed data to the console, and catch any errors that occur.
Advantages of fetch()
One advantage of ‘
XMLHttpRequest‘, requiring less boilerplate code.
Disadvantages of fetch()
One disadvantage of ‘
fetch()‘ is that it’s not supported in older browsers, such as Internet Explorer. Additionally, it doesn’t provide as much control over the HTTP request as ‘
XMLHttpRequest‘, such as setting custom headers.
XMLHttpRequest‘ and ‘
fetch()‘. Both have their advantages and disadvantages, and the choice of which to use will depend on the specific requirements of your application.
If you need more control over the HTTP request, or need to send and receive binary data, ‘
fetch()‘ is a good choice.
Regardless of which method you choose, it’s important to handle errors and ensure that your application is secure by properly validating and sanitizing any user input.