nullable parameter typescript
const sayHello = (name: string, age?: Number): string => {
if(age) return `Hello ${name}! You are ${age} years old.`;
else return `Hello ${name}! How old are you?`;
}nullable parameter typescript
const sayHello = (name: string, age?: Number): string => {
if(age) return `Hello ${name}! You are ${age} years old.`;
else return `Hello ${name}! How old are you?`;
}Copyright © 2021 Codeinu
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