If you don’t include it, it defaults to file. If you’re using a file upload form element, it will match the name attribute. The paramName option is used to set the name of the parameter for the uploaded file. The method option sets the HTTP method and again, it will take this from the form element if you use that approach, or else it’ll simply default to POST, which should suit most scenarios. That said, if you’re attaching it to a form element then it’ll simply use the form’s action attribute, in which case you don’t even need to specify that. The url option defines the target for the upload form, and is the only required parameter. There are a couple of ways to handle fallbacks for when the plugin isn’t fully supported, which we’ll look at later. Opera 12+ (Version 12 for macOS is disabled because their API is buggy).Taken from the official documentation, browser support is as follows: comes in at around 43KB when minified and 13KB when gzipped.is available as an AMD module or RequireJS module.includes extensible file validation support.supports multiple uploads, optionally in parallel.To summarize some of the plugin’s features and characteristics, DropzoneJS: You can use DropzoneJS for any type of file, though the nice little thumbnail effect makes it ideally suited to uploading images in particular. Here’s an animation of the widget in action:Īlternatively, take a look at this most minimal of examples. Clicking the widget launches the more conventional file chooser dialog approach. It’s also pretty well supported across major browsers.ĭropzoneJS isn’t simply a drag and drop based widget, however. Whilst the usability benefits could justifiably be debated, it’s an increasingly common approach and one which is in tune with the way a lot of people work with files on their desktop. For more on Node.js, read Node.js Web Development – Fourth Edition.ĭropzoneJS allows users to upload files using drag and drop. We’ll also implement a simple server-side upload mechanism using Node.js.Īs ever, you can find the code for this tutorial on our GitHub repository. and look at some of the ways in which it can be tweaked and customized. We’re going to take a look at DropzoneJS in some detail. It also makes it easier to validate files before they even reach your server, providing near-instantaneous feedback to the user. It will make your file upload controls look better, make them more user-friendly, and by using AJAX to upload the file in the background, it will at the very least make the process seem quicker. That’s why a plugin to enhance them is always worth a look, and DropzoneJS is just one such option. It’s a real pain to style, it’s clunky and awkward to use, and uploading a file will slow down the submission process of any form. Of all the components that can make up a form, the file control could just be the most frustrating of the lot. Developers don’t like building them, designers don’t particularly enjoy styling them, and users certainly don’t like filling them in.
0 Comments
Leave a Reply. |