Many programming languages have the
print() function or operator to output text into the screen.
Since it was created to manipulate HTML documents in
the browser, the output-to-screen function was
document.write() (was because it’s no longer
recommended to be used — instead, you should manipulate the Document Object Model).
There are also the
alert() function (a method on the
window object), which will display a dialog, and
console.log(), which will write the output into the developer console.
print() function is also there, but instead of writing to the screen, it sends the document to the printer! Or, rather, it causes the printing dialog to pop up. This can be confusing for novice users, and makes the “Hello world” program look different from most other languages.
Since Calcish doesn’t use DOM, we took the
print() function back — in Calcish
it will write the arguments into the screen (specifically, to the output part of the evaluation result).
To send Calcish documents to a printer, just use the menu.
The only downside is that after hours of tinkering in Calcish, I sometimes write
console.log(), getting the nasty print dialog.
Of course, we’ll also support
console.log(), so if you chose not to use
free to do so.