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The content of this article mainly focuses on how to use JavaScript Fetch API, the content of the article is clear and clear, it is very suitable for beginners to learn, it is worth reading. Interested friends can follow the editor to read together. I hope you can get something through this article!

The Fetch API interface allows Web browsers to make HTTP requests to the Web server.

XMLHttpRequest is no longer needed.

Browser support

The figures in the table indicate the first browser version that fully supports Fetch API:

Fetch API instance

The following example gets the file and displays the contents:

Example

Fetch (file) .then (x = > x.text ()) .then (y = > myDisplay (y))

Since Fetch is based on async and await, it may be easier to understand if the above example is written like this:

Example

Async function getText (file) {let x = await fetch (file); let y = await x.text (); myDis

Play (y)

}

It could be even better: use names that are easy to understand instead of x and y:

Example

Async function getText (file) {let myObject = await fetch (file); let myText = await myObject.text (); myDisplay (myText);} what is the language javascript is a dynamically typed, weakly typed language, based on object and event-driven, relatively secure and widely used in client-side web page development, as well as a widely used client-side Web development scripting language. It is mainly used to add dynamic functions to HTML web pages, and now JavaScript can also be used in web servers, such as Node.js.

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