Javascript: Call a function after specific time period
ECMAScript 6 introduced arrow functions so now the setTimeout() or setInterval() don't have to look like this:
setTimeout(function() { FetchData(); }, 1000)
Instead, you can use annonymous arrow function which looks cleaner, and less confusing:
setTimeout(() => {FetchData();}, 1000)
You can use JavaScript Timing Events to call function after certain interval of time:
This shows the alert box every 3 seconds:
setInterval(function(){alert("Hello")},3000);
You can use two method of time event in javascript.i.e.
setInterval()
: executes a function, over and over again, at specified time intervalssetTimeout()
: executes a function, once, after waiting a specified number of milliseconds
Execute function FetchData()
once after 1000 milliseconds:
setTimeout( function() { FetchData(); }, 1000);
Execute function FetchData()
repeatedly every 1000 milliseconds:
setInterval( FetchData, 1000);