adding element in array when array is empty in Javascript is not working

Question

I am facing a problem in javascript array...i am using Serversent event in JS. I will be getting few values from server frequently...

My task is to catch all the details and display in drop-down box...

Now the problem is, during the first request, i will getting values seperated by comma.. I have array object in js...i will check if the array is empty, if so, then i will include the values in combo...

code:

var varArr = new Array();


//since i am using SSE, i will executing this below part multiple times automaticall when ever server pushes data..

if(!varArr.length){
varArr[0]='somevalue';
//Printing some value in <div>
}
else{
//some task...to print in <div>
}

Since i have added some values in array if the array is empty, i am not getting any values printed in div (//Printing some value in ), instead i am getting (//some task...to print in )

Answer 1

Perhaps you mean to do this?

var varArr = new Array();
if (varArr.length === 0) {
  varArr.push(somevalue);
  // Printing some value in <div>
} else {
  // Some task...to print in <div>
}