Given: This type of variable was introduced in ECMAScript 6 and is block scoped. This means that the variable is accessible within the block of code in which it is declared.
Const: This type of variable is also block scoped and was introduced in ECMAScript 6. The difference between const and let is that const cannot be reassigned after it has been declared.
It is important to note that a value stored inside a variable declared with const is also mutable, meaning that its properties can be changed but it cannot be completely reassigned.
In addition to these two loops, there is a do-while loop, which is similar to the while loop, but differs slightly in the way it checks the condition. Here is an example:
IndexOf: Returns the index of the first occurrence of the specified value, or -1 if not found.
Web Development Tutorial For Beginners (#1)
In the example above, the Person class has two properties: name and age, and a greeting method that prints the greeting text.
You can extend a class to create subclasses and inherit properties and methods from the parent class:
In the example above, the Student class extends the Personal class and adds new key features and study methods. The super keyword is used to call the constructor of the parent class and pass the required properties.
In this example, we define the line “Hello, world!” and the regular expression /hello/. We use the test() method of the RegExp object to test whether a string matches a pattern. A Boolean value indicating whether the result string matches the pattern.
You can also use the match() method of the String object to find all matches of a regular expression in a string:
That’s what happened. We have linked our script file in our HTML. To make sure it works, write the following code in your script.js file.
Variables are data-friendly names. ‘Human’ or ‘one head, two. Think about how you call people by their names as opposed to ‘one eye, one nose…’ and so on. Variables are simply human-friendly (and descriptive) names for pieces of data. Let’s consider an example.
Here we define a variable called ‘Greeting’ and assign the value ‘Hello World’. It reads almost like English – ‘Greetings Hello World’ – see? Greeting now has the value ‘hello world’ in it, and can be used instead