Determining when it will be executed

Question

Example:

var horaAtual = new Date();

var horaInicio = new Date("Fri Apr 01 2016 23:30:00");

//Quando(horaAtual == horaInicio)
//execute algo...

I want a function to be executed when it reaches a certain time in my code, without the user having to update the page.

How can I do that?

Answer 1

The function that does this is setTimeout().

var horaInicio = new Date("Fri Apr 01 2016 23:55:00") - new Date();
setTimeout(function(){ alert("teste" )}, horaInicio);

I put in the Github for future reference.

Answer 2

Try this:

var specificTime = new Date('Fri Apr 01 2016 23:39:49').getTime();
var nowTime = new Date().getTime();

if (specificTime > nowTime) {
    window.setTimeout(function () {
    alert('It is time!')
  }, specificTime - nowTime)
}

https://jsfiddle.net/xpns7cup/