Learn SWIFT-WASM with Real Code Examples

# swift/demo/main.swift
import JavaScriptKit

let console = JSObject.global.console
console.log!("Hello, SwiftWasm!")

A basic Swift program compiled to WebAssembly that prints 'Hello, SwiftWasm!' to the JavaScript console.

# swift/demo/add.swift
import JavaScriptKit

let console = JSObject.global.console
func add(a: Int, b: Int) {
    console.log!("Sum: \(a + b)")
}
add(a: 3, b: 5)

Adds two integers and prints the sum to console.

# swift/demo/multiply.swift
import JavaScriptKit

let console = JSObject.global.console
func multiply(a: Int, b: Int) {
    console.log!("Product: \(a * b)")
}
multiply(a: 4, b: 6)

Multiplies two integers and prints the result.

# swift/demo/fibonacci.swift
import JavaScriptKit

let console = JSObject.global.console
func fib(_ n: Int) -> Int {
    if n <= 1 { return n }
    return fib(n - 1) + fib(n - 2)
}
console.log!("Fibonacci(6): \(fib(6))")

Calculates nth Fibonacci number recursively and prints it.

# swift/demo/factorial.swift
import JavaScriptKit

let console = JSObject.global.console
func factorial(_ n: Int) -> Int {
    if n <= 1 { return 1 }
    return n * factorial(n - 1)
}
console.log!("Factorial(5): \(factorial(5))")

Calculates factorial recursively and prints result.

# swift/demo/even.swift
import JavaScriptKit

let console = JSObject.global.console
func isEven(_ n: Int) {
    console.log!(n % 2 == 0 ? "Even" : "Odd")
}
isEven(7)
isEven(10)

Checks if a number is even and prints the result.

# swift/demo/max.swift
import JavaScriptKit

let console = JSObject.global.console
func max(_ a: Int, _ b: Int) {
    console.log!("Max: \(a > b ? a : b)")
}
max(7, 12)

Prints the maximum of two numbers.

# swift/demo/min.swift
import JavaScriptKit

let console = JSObject.global.console
func min(_ a: Int, _ b: Int) {
    console.log!("Min: \(a < b ? a : b)")
}
min(7, 12)

Prints the minimum of two numbers.

# swift/demo/toggle.swift
import JavaScriptKit

let console = JSObject.global.console
var state = false
func toggle() {
    state.toggle()
    console.log!(state ? "ON" : "OFF")
}
toggle()
toggle()

Toggles a boolean value and prints ON/OFF.

# swift/demo/array.swift
import JavaScriptKit

let console = JSObject.global.console
let arr = [1, 2, 3, 4, 5]
for num in arr {
    console.log!(num)
}

Prints elements of an array to console.