There are lots of free web hosting providers who support javascript and HTML files and other promising languages. please check one of them. like GoogieHost
On Amazon you can find a well reknowned book, namely Javascript the Definitive Guide. It contains a useful mix of Javascript examples at a reasonable price as used by actual software engineers for reference.
you probably mean java - download it free from http://java.com/en/ or you can enable javascript in your browser - go to http://wiki.answers.com/Q/How_can_you_activate_the_java_script_in_the_internet_browser
Yes, now days all browsers support it. and also you can learn it and start writing it, it's free. JavaScript is a programming language. If you are referring to Java Runtime Environment (JRE), the program that runs the Java programming language (not to be confused with JavaScript), then yes, it is free from the Java home website (link given below)
There are several, the one I personally recommend is Sublime Text 3, however Atom.io is coming along nicely and is free.
You don't. JavaScript is a special type of language which you will typically find embedded in the program which use them. For example, each web browser on your computer will have its own version of JavaScript.
Using computer language, the most practical online ruler is the one made from JavaScript. JavaScript is only good for online design technology. Otherwise, there are many websites that have a free digital ruler that could help one calculate the measurements on the computer.
There are a number of ways in which one can learn how to program the JavaScript confirm dialog box into their code. One way is by reading the relevant tutorials on the website JavaScript Kit.
depending on the intention of the javascript codes you wish to write. there is much you can do with javascript but the only way to find out what "good Java script codes" are is to explore what you want the Javascript to do on the page.
One can download a Java calendar free from a website called JavaScript Kit. If one also wants a printable calendar, the website called "Year Planner Calendar" has a great selection of free year planners and calendars.
One can find more information about JavaScript strings from several places. One can look at the JavaScript website. One would also do well to look up JavaScript strings on Stack Overflow, which has many resources for answering questions about programming topics.
There are many places where one can learn JavaScript. One can go to the Code Avengers website or one can go to the Codeacademy site or one can go to the Code School site.