Difference between functions and methods in JavaScript:

 

1. JavaScript Functions:

   • A function is a block of code designed to perform a specific task.
   • It can be defined using the function keyword, followed by a name and optional parameters.
   • The body of the function is enclosed in curly braces.
   • Functions are executed when something calls or invokes them.
   • Example:

     function addName(a, b) {
         return a + " " + b;
     }
     console.log(addName("Suresh", "Sharma")); // Output: Suresh Sharma
     

2. JavaScript Methods:

   • A method is a function associated with an object.
   • It is a property of an object that contains a function definition.
   • Methods are functions stored as object properties.
   • They can be accessed using the following syntax: object.methodName().
   • Methods operate on the data contained in a class (i.e., the object it belongs to).
   • Example:

     let employee = {
         empname: "Suresh Sharma",
         department: "Software",
         details: function () {
             return this.empname + " works in "+ this.department +" Department.";    }};

                     console.log(employee.details()); // Output: "Suresh Sharma works in Software Department."

In summary:

• A function can stand alone and be called directly by its name.
• A method is a function associated with an object property.
• Methods implicitly pass the object on which they were called.

• Facebook
• Twitter
• Google+
• Pinterest
• StumbleUpon
• Dig
• LinkedIn