CALL
Call a function with the specified arguments. You can use call, if you know how many argument are going to pass to the functions.
APPLY
Call a function with argument provided as an array. You can use apply if you don't know how many argument are going to pass to the functions.
Both (call and apply) are using to call a functions.
Here is an advantage over apply and call. The .call() method is little bit faster than .apply() method.
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8" />
<title>The Difference Between Call and Apply in JavaScript</title>
<script>
var var1 = {myName: "ABC", };
var var2 = {myName: "XYZ"};
function preview(par1, par2) {
alert(this.myName + '-' + par1 + '-' + par2);
console.log(this.myName, par1, par2);
}
//using call as given below
preview.call(var1, "First", "Second"); //output: ABC First Second
//using apply as given below
preview.apply(var2, ["First", "Second"]); //output: XYZ First Second
//using basic as given below
preview("First", "Second");//output: undefined "First", "Second"
</script>
</head>
<body>
<div>
<h3>Refresh the page and see the alert result or go to console window and see the result.</h3>
</div>
</body>
</html>
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