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Function Declaration - Functions | JavaScript | Repovive

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JavaScript22 sections · 783 units18h total

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Function Declaration

The function keyword

Declare functions with the function keyword:

function sayHello() {
  console.log("Hello!")
}

function showDate() {
  console.log(new Date())
}

sayHello()   // Hello!
showDate()   // Current date

The name follows the same rules as variables: camelCase, starting with a letter. Choose descriptive names that say what the function does.