Write A Javascript Function That Is Called Myname That Returns A String That Contains Your Name

How do you create a function in JavaScript?

JavaScript functions are same as any other language functions except below pointed differences.1. Anything that is not a primitive type (undefined, null, number, string, boolean) is an object (or an instance) in JavaScript. That means function inherits from object.2. Object instances can contain more instances which can be functions. That's what we call a "method" (since it has an automatic this variable).3. Since you can't "call" every Object instance, not every object is a function.function name(parameter1, parameter2, parameter3) {*code to be executed*}e.g :function myFunction(a, b) {return a * b; // Function returns the product of a and b}var x = myFunction(4, 3); // Function is called, return value will end up in xfor details on Functions In JavaScript.

What is the indexOf function in JavaScript?

Let’s see an example.Search a string for "welcome":var str = "Hello world, welcome to the universe.";var n = str.indexOf("welcome");The result of n will be: 13The indexOf() method returns the position of the first occurrence of a specified value in a string. This method returns -1 if the value to search for never occurs.Syntaxstring.indexOf(searchvalue, start)searchvalue is “required” . This is the string to search for.start is “optional”. Default value is 0. It tells at which position to start the search.return Value: A Number, representing the position where the specified searchvalue occurs for the first time, or -1 if it never occurs.ex:Find the first occurrence of the letter "e" in a string, starting the search at position 5:Here the searchvalue is “e” , start position is 5 .var str = "Hello world, welcome to the universe.";var n = str.indexOf("e", 5);The result of n will be: 14

How do you write a program that writes "hello world" ten times in Java?

Two simple ways:If you’re absolutely new to Java Programming then consider duplicating the statements as:-public class HelloWorld {
public static void main(String[] args) {
System.out.println("Hello World!");
System.out.println("Hello World!");
System.out.println("Hello World!");
System.out.println("Hello World!");
System.out.println("Hello World!");
System.out.println("Hello World!");
System.out.println("Hello World!");
System.out.println("Hello World!");
System.out.println("Hello World!");
System.out.println("Hello World!");
}
}
Otherwise, you can use a loop to get the same results as:-public class HelloWorld {
public static void main(String[] args) {
for(int i = 0; i < 10, i++) {
System.out.println("Hello World!");
}
}
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What is a prototype in JavaScript?

It is assumed that you already are acquainted with object data types in JS, creating objects and how to modify object properties. Prototypes allow us to extend objects based on the fact that each JavaScript object includes [[Prototype]] as an internal property. To see this in action, let us create a new empty project like so:let x = {};
this is a practical method that is used to create objects, but there is also another approach that uses the object constructor like so:let x = new Object().
The property [[Prototype]] has double square brackets, which is an indicator of its internal nature, that is, it is not accessible directly in code. Accordingly, we need to use the getPrototypeOf() method to obtain[[Prototype]] of the object.Object.getPrototypeOf(x);
The method yields the following built-in properties and methodsOutput
{constructor: ƒ, __defineGetter__: ƒ, __defineSetter__: ƒ, …}
It is also plausible to use proto property to examine the[[Prototype]]. The proto method also yields an object's internal properties.Please do note that proto should not be used in production code since it is a legacy feature that is not universally compatible with all available browsers. Nonetheless, for purposes of this tutorial, we can still use it for demonstration but keep the previous sentiment in mind.x.__proto__;
we would still get the same output as when we make use of the getPrototypeOf().Output
{constructor: ƒ, __defineGetter__: ƒ, __defineSetter__: ƒ, …}
Ideally, every object in JavaScript should have a [[Prototype]] so that it allows for the linking of two or ore objects.All JavaScript objects created or built-in objects consist of a [[Prototype]] property. Using the internal property, we can then refer to objects between each other, as has been explored further down, using prototype property.Prototypes and Inheritance in JavaScript