Introduction
Environment Setup
What is JavaScript vs ES-5 or ES-6
JavaScript Syntax
JavaScript Comments
JavaScript Use Strict
JavaScript Variables
JavaScript Reserved Words
JavaScript Scope
JavaScript Data Types
JavaScript Function
Function overloading not possible in JavaScript
JavaScript Arrow Function
JavaScript Numbers
JavaScript Number Methods
JavaScript String
JavaScript String Methods
JavaScript if else and else if
JavaScript Comparison and Logical Operators
JavaScript Arrays
JavaScript Sorting Arrays
JavaScript Array Iteration Methods
JavaScript for loop
JavaScript Let keyword
JavaScript Const
JavaScript Objects
JavaScript Object Methods
JavaScript ES5 Object Methods
JavaScript Object Accessors
JavaScript Math Object
JavaScript Random
JavaScript this Keyword
JavaScript Date Objects and Date Formats
JavaScript Classes
JavaScript While Loop
JavaScript Break and Continue
JavaScript Switch Statement
JavaScript JSON
Error handling in JavaScript
In JavaScript don’t have any overloading concept. It just counts how many parameters pass the function. JavaScript also allows to any type passing the function then inside the function we will check the type of the function. Basically, JavaScript read the code top to bottom. If we pass the how many parameters the function executes the at last the function and other overloading function are not executing. So, we understand why JavaScript doesn’t allows to function overloading but it allows to pass the parameters. Now given bellow the code and explain the code:
<!DOCTYPE html>
<html>
<head>
<title></title>
</head>
<body>
<script type="text/javascript">
function ParameterPass(p1, p2, p3)
{
console.log(p1);
console.log(p2);
console.log(p3);
};
ParameterPass("one");
ParameterPass("one",2);
ParameterPass("one",2,true);
</script>
</body>
</html>
In this code we see the passing the parameter. We have a function name as “ParameterPass”. The function takes the three parameter and print the output in to the console. If any parameter is missing then it passes the undefine and also it prints the console.
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