String+Extensions.md

String+Extensions

Common string helpers for everyday iOS development.

API

Property / Method	Returns	Description
isValidEmail	Bool	Checks email format via regex
trimmed	String	Strips leading/trailing whitespace
isNumeric	Bool	true if string contains only digits
truncated(to:trailing:)	String	Cuts to length, appends trailing string
slugified	String	URL-safe lowercase slug
snakeCased	String	Converts camelCase to snake_case

Examples

import SwiftUtilsExtensions

// Email validation
"user@example.com".isValidEmail  // true
"not-an-email".isValidEmail      // false

// Trimming
"  hello world  ".trimmed  // "hello world"

// Numeric check
"12345".isNumeric  // true
"123a5".isNumeric  // false

// Truncation
"A very long title that should be shorter".truncated(to: 20)
// "A very long title th…"

"Hello World".truncated(to: 5, trailing: "...")
// "Hello..."

// Slugification
"Hello World From Swift!".slugified  // "hello-world-from-swift"

// Snake case conversion
"backgroundColor".snakeCased  // "background_color"
"userProfileURL".snakeCased   // "user_profile_url"