Anchor elements are useful for adding hyperlinks to other resources and documents from an HTML document. The URL of the linked resource is specified in the href attribute of the anchor element. In HTML 5, a new download attribute was added to the anchor element. The download attribute can be given a valid filename as its value.
However, the user can still modify the filename in the save prompt that pops-up. There are a few noteworthy facts about the behavior of the download attribute:. There are now Web APIs that can be used to programmatically:.
In this section, we will examine how we can programmatically generate content using Web APIs on the browser. Here is a breakdown of what we are about to do:. Here is what the CSV generation script could look like:.
The code snippet simply logs the resulting CSV string to the console. First, we define a squareImages filter function for filtering images in the collection with equal width and height. Next, we define a collectionToCSV higher-order function which takes an array of keys and returns a function that takes an array collection of objects and converts it to a CSV string extracting only the specified keys from each object.
Finally, we specify the fields we want to extract from each photo object in the collection in the exportFields array. Here is what the output could look like on the console:. In this example, we will use the Canvas API to manipulate the pixels of an image, making it appear grayscale. Here is a comparison between an actual image and the corresponding grayscale canvas image. To put it another way: Please, please don't do it like this.
Following up with Grim Make the iframe src link directly to the file and use an. Show 5 more comments. It works pretty similarly with an iframe but has some cool features that I have found quite handy: User never leaves the same page they initiated a file download from. This feature is becoming crucial for modern web applications Tested cross browser support including mobile! It supports POST and GET requests in a manner similar to jQuery's AJAX API successCallback and failCallback functions allow for you to be explicit about what the user sees in either situation In conjunction with jQuery UI a developer can easily show a modal telling the user that a file download is occurring, disband the modal after the download starts or even inform the user in a friendly manner that an error has occurred.
See the Demo for an example of this. John Culviner John Culviner Is there a way to prevent Internet Explorer 8 to block the download? Internet Explorer Information Bar asks confirmation for download which causes the page to be reloaded and no donwload, with the result that the user has to click again on the download link. Thanks in advance — Pierpaolo. This is just what I needed.
Thank you! Gareth Gareth k 35 35 gold badges silver badges bronze badges. Community Bot 1 1 1 silver badge. DanielKhan DanielKhan 1, 1 1 gold badge 9 9 silver badges 18 18 bronze badges. Link directly to the file in the iframe and set the headers in an htaccess.
This should be a comment, not an answer. Leniel Maccaferri PixelCommander PixelCommander 1 1 silver badge 4 4 bronze badges. This requires a little intermediate knowledge of the JavaScript to work and in this example a Axios library will be used. Skip to content. Change Language. Related Articles. Table of Contents. Save Article. Nuvvu devudu samee….. Just opens another tab in latest Chrome…. It works now.
Used error on my part. Nice code. Thanks, fixed. Adam Simms. Thank you so much for this! Downloading file is working fine. Writing code in comment? Please use ide. Load Comments. What's New.
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