Java script functions
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The document discusses functions in JavaScript. It defines a function as reusable block of code that can be called from different parts of a program. This avoids writing duplicate code. Functions allow programmers to split large programs into smaller, manageable functions. The common way to define a function is using the function keyword followed by the name, parameters, and code block. Functions can take parameters and be called by specifying the parameters within parentheses. Functions help write modular code.
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Representation of syntax, semantics and Predicate logics
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Inheritance in java
Inheritance in javachauhankapil This document discusses inheritance in Java. It defines key terms like subclass, superclass, and reusability. It explains that a subclass inherits the properties and behaviors of its parent superclass. The syntax for inheritance in Java uses the "extends" keyword. The document provides two code examples to demonstrate inheritance - a Programmer subclass that inherits from an Employee superclass, and a My_Calculation subclass that inherits and extends the Calculation superclass with a new method.
Propositional logic
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Constructors in java
Constructors in javachauhankapil Constructors in Java are special methods that are used to initialize objects. There are two types of constructors: default (no-arg) constructors that take no parameters, and parameterized constructors that allow passing parameters to initialize an object. Constructors must have the same name as the class and cannot have a return type. They are automatically called when an object is created using the new keyword to allocate memory and initialize fields.
Methods in java
Methods in javachauhankapil This document discusses methods in Java. It defines a method as a collection of instructions that performs a specific task and provides code reusability. There are two types of methods in Java: predefined methods and user-defined methods. Predefined methods are methods already defined in Java class libraries that can be directly called, while user-defined methods are written by programmers according to their needs. Examples of both types of methods are provided.
Circular linked list
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- 1. JavaScript - Functions Prof. Neeraj Bhargava Kapil Chauhan Department of Computer Science School of Engineering & Systems Sciences MDS University, Ajmer
- 2. JavaScript - Functions A function is a group of reusable code which can be called anywhere in your program. This eliminates the need of writing the same code again and again. It helps programmers in writing modular codes. Functions allow a programmer to divide a big program into a number of small and manageable functions.
- 3. Cont… The most common way to define a function in JavaScript is by using the function keyword, followed by a unique function name, a list of parameters (that might be empty), and a statement block surrounded by curly braces.
- 4. Syntax Syntax The basic syntax is shown here. <script type = "text/javascript"> <!-- function functionname(parameter-list) { statements } //--> </script>
- 5. Example It defines a function called sayHello that takes no parameters − <script type = "text/javascript"> <!-- function sayHello() { alert("Hello there"); } //--> </script>
- 6. Calling a Function <html> <head> <script type = "text/javascript"> function sayHello() { document.write ("Hello there!"); } </script> </head> <body> <p>Click the following button to call the function</p> <form> <input type = "button" onclick = "sayHello()" value = "Say Hello"> </form> <p>Use different text in write method and then try...</p> </body> </html> OUTPUT: Hello there!
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- 8. Assignment Question Explain the Function in javascript with discuss the following terms. Calling Function Function Parameter