Where you just grab a script from anywhere, not only are you stealing a script, but also you won't get instructions on how to install it or support if you can't get it to work.Another thing to watch for when you are getting your free Java Script downloads from an appropriate site is that many of these sites have been in existence for many years, and the way that Java Script should be used has changed over time.
What you need to be careful of, though, is to obtain them from a site that is actually offering the scripts as a free download, rather than just copying the scripts from any site.
Java Script code that performs any significant task will be subject to copyright, so you will permission from the author to use his or her script.
The task the Java Script is doing is not able to be copyrighted, however, so if you are writing a script yourself, you can't get into trouble for looking at an existing script to see how the programmer did it and then writing your own version.
But if you are just looking for free Java Script downloads, then you should go to a site where the author specifically states that his or her script is available as a free download and can be used on your site.
There are many sites that offer free Java Script downloads, including several huge sites that only offer Java Script downloads, as well as other sites (such as this one) that offer free Java Script downloads and also have tutorials on how to write the scripts for yourself.
Apart from avoiding copyright issues, there are other advantages to getting your free Java Script downloads from a site that is actively offering the scripts.The main one is that such sites usually provide step-by-step instructions on how to actually install and use the script.Unlike other languages that can be used in a web browser, Java Script doesn't need to be downloaded and installed.Browsers that support Java Script have it built into the browser, where it is turned on by default (meaning that typically, you'll need to change your browser settings only if you want the browser to run Java Script).The only exception is that Internet Explorer also supports vb Script the same way, and the two languages are controlled via settings called "active scripting" rather than a setting that reference Java Script specifically.What you will need to download with Java Script, then, is not the scripting language itself, but rather those scripts that you want to run in your web page (assuming that you have decided not to learn Java Script so you can write it all yourself).