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Hi I am transferring a large amount of data to my browser. I have a few methods in mind of doing this.
To accomplish this, I am writing it to a json/csv file and reading that from the browser. Can a browser parse remote json/csv urls - if so let us say I have "https://remote_file.json" how can I access the data in this file through my JS?
Thanks
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in my application I want to allow the user to upload a PDF file. Before I send the file to the server, I want to validate with JavaScript that the PDF is not password protected. What is the best way to do this with Vanilla JS. I would like to avoid using a library if possible.
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I want to protect my website PDF files from downloading and snapshot or Ctrl+P. I read that it can be done by JavaScript but I'm unable do it.
Not possiable
In order for the client or user to see and read the PDF, your serve needs to server it. To send a copy of it to the clients broswer. The user can always download the PDF becuase you need to send it
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I'm wondering how I can execute a few lines of code in JavaScript when a local .txt file updates. Thanks!
Given that you've tagged this question html and html5: You can't. Browsers do not provide webpages with any API to monitor the local file system for changes.
You'd need a JS environment which does have access to the local file system to do this, for example: NodeJS, which has the fs.watch method.
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If you can include Javascript so it automatically updates that would be awesome. I want it to gather the amount of space that is being used in directory /wy/ and display on the index.php file and automatically update whenever a file is added to file directory /wy/.
You cant achive this only with javascript as your tag implies. you may need to use any file APIs available. Better ways is to have a Server implementation for this and get the memory details from server using Ajax or any client-server communication techniques.
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I'm building a public database of scientific data.
By now I have a postgres 9.1 database running on a machine, and I've been using psycopg2 to interact from python 2.7.
At the other hand, I'm working on a Boilerplate html interface.
The question is, how to build the interaction between the webpage and the python/postgres database? which library should I use ?
Thanks in advance
What you're looking for is a web framework. Finding the right one is a hard choice and source of lots of discussions. Have a look at this list: http://wiki.python.org/moin/WebFrameworks