This article was reviewed by Joe Medley and Kayce Basques. The browser-fs-access makes your life easier by dealing with the subtleties of progressive enhancement and making your code as simple as possible. On browsers that support the File System Access API, you can make the experience better by allowing for true saving and overwriting (not just downloading) of files and by letting your users create new files wherever they want, all while remaining functional on browsers that do not support the File System Access API. Working with system files technically works on all modern browsers. Excalidraw app toolbar on Chrome with a Save and a focused Save As button. Excalidraw app toolbar on iPhone with just a Save button. Note how on iPhone the Save As button is missing. The screenshots below show the difference between Excalidraw's responsive main app toolbar on iPhone and on Chrome desktop. const openFile = async ( ) => ) you can show a Save As button in addition to a Save button. A File is a specific kind of Blob, and can be used in any context that a Blob can. The input object gives you a FileList, which in the case below consists of just one File. In its simplest form, opening a file can look something like the code sample below. # Opening filesĪs a developer, you can open and read files via the element. If you know how it used to work the old way, you can jump down straight to the new way.
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