Yes, there's a new feature from the W3C that's supported by some modern browsers, the File API. It can be used for this purpose, and it's easy to test whether it's supported and fall back (if necessary) to another mechanism if it isn't. Here's a complete example:
javascript file upload size validation - Stack Overflow
Yes, there's a new feature from the W3C that's supported by some modern browsers, the File API. It can be used for this purpose, and it's easy to test whether it's supported and fall back (if necessary) to another mechanism if it isn't. Here's a complete example:
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