Error handling: val := risky_fn() or default_val
// Array slice mut arr := [1, 2, 3] arr << 4 println(arr) // [1, 2, 3, 4]
Map: m := "key": "value"
Function: fn add(x int, y int) int return x + y
Array ops: arr << element (push) arr.pop() (pop)
This report provides a practical roadmap for obtaining, creating, or using PDF-equivalent resources to master V programming fundamentals. | Resource | Official PDF Available? | Recommended Action | |----------|------------------------|---------------------| | vlang.io/docs | No | Use online + convert to PDF via browser print | | V Wiki (GitHub) | No | Clone as Markdown → convert to PDF | | "V Book" (community) | Yes (unofficial) | Download community PDFs with caution | | V compiler help ( v help ) | No | Redirect output to text → convert to PDF |
| Topic | Why It’s Unique in V | |-------|----------------------| | | Enforces functional purity at module level | | Option/Result types | Built-in error handling without exceptions | | Arrays and maps | Fixed-size arrays by default; << operator for appending | | Struct embedding | Composition over inheritance (no classes) | | Interfaces | Struct-implicit, no implements keyword | | Modules | Simple import system; no cyclic imports allowed | | Hot code reloading | Available for native GUI apps (advanced) | 5. Example: First Program – Including in Your PDF To make your PDF practical, embed runnable examples:
git clone https://github.com/vlang/v-book cd v-book # Install md-to-pdf or use pandoc: pandoc book.md -o v_book.pdf --toc A solid “Getting Started” PDF must include these V-specific concepts: