Variables

Let me tell you something straight: if you're the kind of person who loves using var everywhere, I get it. You enjoy chaos, uncertainty, and living life on the edge. But let’s face it—const is your smarter, more reliable, and frankly better-looking friend. Why? Because using const means fewer surprises for both you and the compiler. It’s like telling the universe, "Hey, this variable is set in stone. No, I’m not going to mutate it. Yes, you can relax." The compiler loves that. So do I.

Figure 3.1 – The essence of a const-type person—steady and reliable—alongside a var-type person—chaotic and unpredictable

In Zig, where optimization is critical and runtime surprises are sacrilege, sticking with const allows the compiler to do all sorts of smart things, such as not blowing up your performance. Sure, you can sprinkle var here and there, but every time you...