html5-filesystem

If I use JavaScript to create a file on a HTML5 Filesystem, can I find it on the real file system of my computer? originally I think all file is stored on a virtual file system , so files can be protected. but it's not. for chrome, file is placed at "C:\Users\user name\AppData\Local\Google\Chrome\User Data\Default\File System" with obfuscated name on windows 7. so you can operate on it as local file. 来源： https://stackoverflow.com/questions/11719816/where-is-the-filesystem-in-html5-stored-on-the-real-file-system

So I'm trying to create a file dropper web application. Right now, a user can drop files on the screen and I can read them, including all the files in a directory that was dropped. But, I don't know when the script is done reading the files. Some code: This first function handles a 'drop' event and will loop through each file and send it to another function that will read its contents. function readDrop( evt ) { for( var i = 0; i < evt.dataTransfer.files.length; i++) { var entry = evt.dataTransfer.items[i].webkitGetAsEntry(); if(entry) readContents(entry, ""); } //Do stuff after all files and

I'm working on a Meteor Cordova app which needs to work offline. I'm using ground:db to cache my data offline, which works fine, except for images. I have an image collection using collectionFS. Since these images need to be available when offline, I developed some kind of local sync which observes the image collection, and when some image gets added or changed, downloads the image to the local storage using cordova filesystem and filetransfer. I keep track of the downloaded images in a client-side collection. When using an image in the a template, I check if the image exists locally. If so, I

I need to save a file of unknown size, potentially multiple gigabytes, in JS. The data source is a mediastream captured using mediarecorder. In Chrome, this can be accomplished using the filesystem and filewriter apis with filesystem: urls by writing blob chunks to a fileentry as they are received, then setting a download link to the file url. However, I cannot find a way to do this in Firefox or Edge (whenever it gets mediarecorder). This works for me in Firefox: navigator.mediaDevices.getUserMedia({ video: true }) .then(stream => record(stream, 5000) .then(recording => { stop(stream); video

I'm writing a web browser app (client-side) that downloads a huge amount of chunks from many locations and joins them to build a blob. Then that blob is saved to local filesystem as a common file. The way I'm doing this is by mean of ArrayBuffer objects and a blob. var blob = new Blob([ArrayBuffer1, ArrayBuffer2, ArrayBuffer3, ...], {type: mimetype}) This works ok for small and medium-sized files (until 700 MB aprox), but browser crashes with larger files. I understand that RAM memory has its limits. The case is that I need to build the blob in order to generate a file, but I wanna allow users

I need to find out the file creation date and file last modified date while uploading the xls file, I have to do some calculation on this 2 dates. By using below code I can easily get file last modified date. $('#userfile').bind('change', function() { //this.files[0].size gets the size of your file. alert((this.files[0].lastModifiedDate)); alert((this.files[0].DateCreated)); $file_full_path =this.files[0].mozFullPath; alert(alert); }); I am not able to find out the the file creation date. can anybody please help me. I have also tried it via php but it is not possible via php because php doesn