How can I pass a parameter to a setTimeout() callback?

Question

I have some JavaScript code that looks like:

function statechangedPostQuestion()
{
  //alert("statechangedPostQuestion");
  if (xmlhttp.readyState==         


        

Answer 1

if you want to pass variable as param lets try this

if requirement is function and var as parmas then try this

setTimeout((param1,param2) => { 
     alert(param1 + param2);
     postinsql(topicId);
},2000,'msg1', 'msg2')

if requirement is only variables as a params then try this

setTimeout((param1,param2) => { alert(param1 + param2) },2000,'msg1', 'msg2')

You can try this with ES5 and ES6