The element remains hidden during the process and is removed from the DOM immediately after the click() call. The function injects an element into the body, sets it URL to a Blob value to the text content of the destination file, and clicks the element to trigger the download. However when downloading binary files, the responseType property of the request object is set to blob. A XMLHttpRequest object is used to make a normal AJAX request. You can use this method on browsers that support HTML5.ĭownload Sample Codes. It is done without sending an action request to a server. Here in the created JavaScript function, take the two parameters first is the name of the file and second is entered a content value on the text area.Īutomatic file download with JavaScript is a method that allows you to retrieve a file directly from the URL by declaring a JavaScript function. On the above source, we create a JavaScript function where we set an attribute on the button and text area where we put out own text and click the button to download. The following line will attach the file content to the download link URL as a Blob object. Finally, using the Blob object, which contains the file content, we will prepare our text file for download with the help of the createObjectURL() static method. STEP 3: Prepare the File for Download Using createObjectURL() Method.
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