Client js determines the file type and file size and limits the upload size_javascript skills

Due to project needs! A script is needed to determine the size and file type on the client side! It’s so hard to find information online! I simply wrote an example myself and tested the file upload size limit. It is compatible with ie6, ie7, ie8, Google Chrome, ff and other browsers

Copy code The code is as follows:

< input type="file" name="contractFileName" style="width: 500px;" onchange="fileChange(this);"/>