JavaScript variable number of arguments to function

Sure, just use the arguments object.

function foo() {
  for (var i = 0; i < arguments.length; i++) {
    console.log(arguments[i]);
  }
}

Another option is to pass in your arguments in a context object.

function load(context)
{
    // do whatever with context.name, context.address, etc
}

and use it like this

load({name:'Ken',address:'secret',unused:true})

This has the advantage that you can add as many named arguments as you want, and the function can use them (or not) as it sees fit.

Yes, just like this :

function load()
{
  var var0 = arguments[0];
  var var1 = arguments[1];
}

load(1,2);

Use the arguments object when inside the function to have access to all arguments passed in.

Use array and then you can use how many parameters you need. For example, calculate the average of the number elements of an array:

function fncAverage(sample) {
    var lenghtSample = sample.length;
    var elementsSum = 0;
    for (var i = 0; i < lenghtSample; i++) {
        elementsSum = Number(elementsSum) + Number(sample[i]);
    }
    average = elementsSum / lenghtSample
    return (average);
}

console.log(fncAverage([1, 2, 3, 4, 5, 6, 7, 8, 9, 10])); // results 5.5

let mySample = [10, 20, 30, 40];
console.log(fncAverage(mySample)); // results 25

//try your own arrays of numbers