8 Tips and Tricks
8.1 Other User inputs
8.1.1 Uploading a file
You can use <input type="file"> to have users upload a file. More info at
8.1.2 Parameters in the URL
Key-value pairs can be appended to URLs using ?key1=value1&key2=value2 syntax.
The extra part is called the query string, which you can parse to get these
values. This can be a handy way to make a tool that others can start is
some initial configuration and makes you tool much more flexible.
Find out more at these resources