Snippet

Default Parameter Values in Functions

Default function parameters allow named parameters to be initialized with default values if no value or undefined is passed.

snippet.js

javascript

function greetUser(name = 'Guest') {
  return 'Hello ' + name;
}
console.log(greetUser()); // Output: "Hello Guest"

react

Breakdown

function greetUser(name = 'Guest')

Defines a parameter 'name' that defaults to 'Guest' if omitted.

return 'Hello ' + name;

Concatenates the greeting string with the name variable.