Nimrod Programming/First steps
First steps, hello world!
[edit | edit source]So here we are let's start with our very first program. In programming languages it's been a tradition to start by writing an example of the language which displays in the console ."Hello world!", and it would be like this in Nimrod:
echo ("Hello world!")
Now the parenthesis aren't really necessary
Easy, isn't it? If you want to try it just save it to a file with extension .nim (e.g: helloworld.nim) and then compile it, for doing this open a terminal, and issue in the terminal:
cd "yourPath"
Then type:
nim c "filename"
This command will make it compile, then will execute it (that's the job of the "-r" argument), when this is done you'll see in the console "Hello world!".
Understanding and extending
[edit | edit source]But how we did that? Basically we told the PC to print "Hello world!" by writing "echo" (which is what we call a function) and then telling what we wanted to print out if we wanted we could made it write other things:
echo ("It's a good day!")
But we are not limited to one expression we can put as many of them as we want:
echo ("It's a good day!")
echo ("Hello world!")
Compile this (just as we did earlier) and it'll print out into the console:
It's a good day!
Hello world!