We know that there are two type of websites, one is Static and another is Dynamic. Static website is only for view means there will no behavior, no functioning in website if there are buttons and user click on that then nothing will happen. So to make a website dynamic we have JavaScript.
JavaScript is a dynamic type programming language used in many areas like web development, web applications, game development etc. It is a must to learn programming language for every student who is pursuing training at a web design institute in Delhi.
According to a survey around 70% programmers uses JavaScript over other programming language. JavaScript gives flexibility to use their dynamic features on websites which is not possible with the help of HTML and CSS.
JavaScript is a scripting language so most of the browsers using it for creating dynamic things on a web page. Whenever you see a smooth automatic image slide or click to show drop down nav-bar menu, or elements changing their colors dynamically it is all done by JavaScript.
By looking at these points, one thing is surely clear that joining a JavaScript training institute in Delhi is indeed a need to understand this language in a better way. There are many programs for JS that this institute offers such as it has a 4 months program which covers professional and the best JavaScript classes in Delhi. Not only this, you can attain JavaScript training in Rohini for 3 months.
If we talk about that how JavaScript will be link in HTML document then we have three ways.
Internal JavaScript:
The script tag for JavaScript is similar to the style tag for style declarations within an HTML page. And here is an example of Internal JavaScript link.
</p>
function fn(){
alert("I am an internal javascript link")
}
fn()
To know more about the markup language we mentioned above, you can go through HTML5 & CSS3 training institute in Delhi.
External JavaScript:
You might want to keep your JavaScript code in a separate file. This is possible with external JavaScript. Here is an example of external link code.
Get a command on external JS linking and implementation at web design and development institute in Delhi.
Inline JavaScript:
Inline javascript is written inside the body of the html. Here is an example of inline code.
Click me!
Now with the advanced topics like variables, it is must to understand the core concepts and for that various web development courses in Delhi are important to go for.
- Variables:
Variables are known as container to store some value in JavaScript. The main goal of variable declaration is to keep the necessary data in memory as variable so that we may use them throughout our programme to carry out any task or action or action. Once a variable is declared, it can be used in a programme by referencing its name and appropriate data type.
JavaScript come up with main 3 types of variable
Let’s know about them.
Let, Const, Var
Operators:
In javascript there are three types of operator unary, binary, ternary.
Unary operator operate upon single operand and contains these signs (+, -, ++, --).
Binary operator: binary operator operate upon two or more than two operand and contains these symbol (&&, !=, ||, ==, ====).
Ternary Operator: ternary operator are known conditional statement (:, ?).
Function:
Functions are basically building block of a code. It is used to perform operations. And we can use it’s code anywhere by calling the function name. Main advantage of using function is less coding and code reusability.
Conditional statement:
There may be couple of times when you need to choose one of several paths while writing a program. In that case you need to work with conditional statement or control structure that provide permit your program to choose correct decision based on the based condition. Going for a web design course in Delhi is an ideal thought to make in your mind if you are very much sure about learning JS or related languages.
