Javascript code used to determine whether the suffix of the uploaded file is valid _ javascript skills

Source: Internet
Author: User
This article describes how to use javascript to determine whether the suffix of an uploaded file is valid. It uses a complete example to analyze how javascript can determine whether the suffix of the uploaded file is valid, if you are interested, refer to the example in this article to introduce the detailed code for determining whether the suffix of the uploaded file is valid in js. The details are as follows:


Select File

Select a 1.jpg File

Uploaded successfully legal

All operations except the image file format are invalid.


 Determine whether file upload is legal
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