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doc: fix phrasing and whitespace (#6520)

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igrekus 2020-10-01 23:41:17 +03:00 committed by GitHub
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@ -12,8 +12,8 @@ and by the end of it you will have pretty much learned the entire language.
The language promotes writing simple and clear code with minimal abstraction. The language promotes writing simple and clear code with minimal abstraction.
Despite being simple, V gives the developer a lot of power. Anything you can do in other languages, Despite being simple, V gives the developer a lot of power.
you can do in V. Anything you can do in other languages, you can do in V.
## Table of Contents ## Table of Contents
@ -105,32 +105,32 @@ fn main() {
println('hello world') println('hello world')
} }
``` ```
Save that snippet into a file `hello.v` . Now do: `v run hello.v` .
Save this snippet into a file named `hello.v`. Now do: `v run hello.v`.
> That is assuming you have symlinked your V with `v symlink`, as described > That is assuming you have symlinked your V with `v symlink`, as described
[here](https://github.com/vlang/v/blob/master/README.md#symlinking). [here](https://github.com/vlang/v/blob/master/README.md#symlinking).
If you have not yet, you have to type the path to V manually. If you haven't yet, you have to type the path to V manually.
Congratulations - you just wrote your first V program, and executed it! Congratulations - you just wrote and executed your first V program!
> You can compile a program without execution with `v hello.v`. You can compile a program without execution with `v hello.v`.
See `v help` for all supported commands. See `v help` for all supported commands.
In the above example, you can see that functions are declared with `fn`. From the example above, you can see that functions are declared with the `fn` keyword.
The return type goes after the function name. In this case `main` doesn't The return type is specified after the function name.
return anything, so the return type can be omitted. In this case `main` doesn't return anything, so the return type can be omitted.
As in many other languages (such as C, Go and Rust), `main` is an entry point. As in many other languages (such as C, Go and Rust), `main` is the entry point of your program.
`println` is one of the few built-in functions. It prints the value passed to it `println` is one of the few built-in functions.
to standard output. It prints the value passed to it to standard output.
`fn main()` declaration can be skipped in one file programs. `fn main()` declaration can be skipped in one file programs.
This is useful when writing small programs, "scripts", or just learning This is useful when writing small programs, "scripts", or just learning the language.
the language. For brevity, `fn main()` will be skipped in this For brevity, `fn main()` will be skipped in this tutorial.
tutorial.
This means that a "hello world" program can be as simple as This means that a "hello world" program in V is as simple as
```v ```v
println('hello world') println('hello world')