Questions

1. Write the contents of the contacts series out to a contacts3.txt file with /lines. What is different now?
2. Try out write/part with 20 as an argument. What does it do?
3. write/seek %file new-text n (where n is a number) is used to replace the text in %file starting at position n+1. Try this out for the contacts series and replace John in the first item with Adam.
4. Use save and load to store and read our contacts series in a file.
5. Rewrite the appin function with a copy "" and call it several times to see the difference.
6. Write a script to ask the user the currency and the format type she/he is interested in (XML or JSON). Here, you have to use the http://www.floatrates.com/daily/USD.xml format, which doesn't use query string parameters. Try it out by obtaining data in JSON format. Hint: Use probe to see whether your URL is correct!

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