Add daily email for 2024-08-17

Types add context

source/_daily_emails/2024-08-17.md

@@ -0,0 +1,33 @@
+---
+title: Types add context
+date: 2024-08-17
+permalink: daily/2024/08/17/types-add-context
+tags:
+    - software-development
+    - clean-code
+cta: ~
+snippet: |
+    Types add helpful context to code, making it easier to read and understand.
+---
+
+In yesterday's email, I wrote about why [readable variable names are important][0] and why I use descriptive variable names in my code.
+
+Given this pseudo-code:
+
+```php
+function hande(req, res) {
+}
+```
+
+With the short variable names, whilst you can guess, it's unclear what the variable names are.
+
+However, in this code, we have the same variable names, but we also have additional type information:
+
+```php
+function handle(Request req, Response res): void {
+}
+```
+
+Even with the same variable names, I know what their types are and what the function returns, I have better completions and diagnostics in my editor and better static analysis of my code, making it easier to identify and fix potential bugs.
+
+[0]: {{site.url}}/daily/2024/08/16/what-are-err--req-and-res