# how to make the interval value dynamic and random every loop of setInterval NodeJs

## how to make the interval value dynamic and random every loop of setInterval NodeJs

Contents

Problem Description:

I have a function that generates a random number from 3 to 5 (including 3 and 5) and I want the setInterval that triggers a function in nodeJS in loop to have its interval value received from another function and that each time the loop occurs in setInterval the value is different (random).

``````bot.start(async (ctx, next) => {

ctx.reply(`Se preparem para os sinais! proximo sinal em alguns minutos`)

if ( paused == false) {
setInterval(() => {
bot.telegram.sendMessage(process.env.TELEGRAM_CHANNEL, '🛑 APOSTE AGORA 🛑nn* Analisar as rodadas anteriores pra saber se vai entrar 10 segundos antes ou 10 segundos depois. *nnSaque automático 1.5x nnMax 2xnn50% de saque ativado em 1.3xnn*Gerenciamento de banca, se perder a culpa não é minha!*nnVamos pra cima voadoresnn🚀💜✅n'
);
}, getRandomInterval(3,5) * 1000);
}
next();
})
``````
``````function getRandomInterval(min, max) {
let randomInterval = Math.floor(Math.random() * (max - min) + min);
console.log('linha 92: ' + randomInterval)
return randomInterval;
}
``````

## Solution – 1

`setTimeout` is the perfect candidate for this.

``````bot.start(async(ctx, next) => {

ctx.reply(`Se preparem para os sinais! proximo sinal em alguns minutos`)

if (paused == false) {
function foo_interval_action() {
bot.telegram.sendMessage(process.env.TELEGRAM_CHANNEL, '🛑 APOSTE AGORA 🛑');
setTimeout(foo_interval_action,  getRandomInterval(3, 5) * 1000);
}
setTimeout(foo_interval_action,  getRandomInterval(3, 5) * 1000);
}
next();
})

function getRandomInterval(min, max) {
let randomInterval = Math.floor(Math.random() * (max - min) + min);
// console.log('linha 92: ' + randomInterval)
return randomInterval;
}``````

Here’s a generic function to generate variable delay interval. Nothing fancy.

``````function setVariableInterval(foo_do_action, foo_get_delay) {

function do_it() {
foo_do_action();
setTimeout(do_it, foo_get_delay())
}

// right away
do_it()
}

var foo_get_delay = function() {
return Math.random() * 3000 + 250
}

var foo_do_action = function() {
console.log("time now is: " + new Date())
}

setVariableInterval(foo_do_action, foo_get_delay)``````
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