JavaScript Basics

JavaScript is a modern alternative to Lua for FiveM scripting.

Variables


const name = "John"
let age = 25
var isActive = true

Functions


function greet(name) {
    return `Hello, ${name}`
}
 
const message = greet("World")

Objects


const player = {
    name: "John",
    age: 25,
    items: ["sword", "shield"]
}
 
console.log(player.name) // "John"
console.log(player.items[0]) // "sword"

FiveM Functions


// Get player
const playerId = GetPlayerPed(-1)
 
// Get player coords
const coords = GetEntityCoords(playerId)
 
// Trigger event
emit('myevent', data)

Async/Await


async function fetchData() {
    const response = await fetch('https://api.example.com/data')
    const data = await response.json()
    return data
}

Common Patterns

Debouncing


let lastTime = 0
function debouncedAction() {
    const currentTime = GetGameTimer()
    if (currentTime - lastTime < 1000) {
        return
    }
    lastTime = currentTime
    // Do action
}

Threading


setTick(() => {
    // Do something every frame
})