javascript class default value code example
Example 1: javascript constructor default parameter
function greet(name, greeting, message = greeting + ' ' + name) {
return [name, greeting, message]
}
greet('David', 'Hi') // ["David", "Hi", "Hi David"]
greet('David', 'Hi', 'Happy Birthday!') // ["David", "Hi", "Happy Birthday!"]
Example 2: javascript default parameters
function multiply(a, b = 1) {
return a * b;
}
Example 3: js default parameter
function greeting (name = 'stranger') {
console.log(`Hello, ${name}!`)
}
greeting('Nick') // Output: Hello, Nick!
greeting() // Output: Hello, stranger!