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62 lines
1.6 KiB
Markdown
62 lines
1.6 KiB
Markdown
---
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language: d
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filename: learnd.d
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contributors:
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- ["Nick Papanastasiou", "www.nickpapanastasiou.github.io"]
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lang: en
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---
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If you're like me and spend way to much time on the internet, odds are you've heard
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about [D](http://dlang.org/). The D programming language is a modern, general-purpose,
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multi-paradigm language with fantastic support for OOP, functional programming, metaprogramming,
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and easy concurrency and parallelism, and runs the gamut from low-level features such as
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memory management, inline assembly, and pointer arithmetic, to high-level constructs
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such as higher-order functions and generic structures and functions via templates, all with
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a pleasant syntax, and blazing fast performance!
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D is actively developed by Walter Bright and Andrei Alexandrescu, two super smart, really cool
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dudes. With all that out of the way, let's look at some examples!
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'''d
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// You know what's coming...
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import std.stdio;
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// args is optional
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void main(string[] args) {
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writeln("Hello, World!");
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}
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// Conditionals and loops work as expected.
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import std.stdio;
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void main() {
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for(int i = 0; i < 5; i++) {
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writeln(i);
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}
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auto n = 1; // use auto for type inferred variables
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while(n < 10_000) {
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n += n;
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}
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do {
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n -= (n / 2);
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} while(n > 0);
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// For and while are nice, but in D-land we prefer foreach
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foreach(i; 1..int.max) { // The .. creates a continuous range
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if(n % 2 == 0)
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writeln(i);
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}
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foreach_reverse(i; short.max) {
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if(n % 2 == 1)
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writeln(i);
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else
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writeln("No!");
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}
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}
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'''
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