Component Communication in React: Complete Beginner's Guide (2026)

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  What is Component Communication in React? Introduction Component Communication is the process of sharing data, functions, and events between React components so they can work together, respond to user interactions, and keep the application's user interface updated. When you build a React application, you don't create everything inside a single file. Instead, you divide the application into small, reusable components. Each component has its own responsibility. For example, one component may display a navigation menu, another may show a list of products, while another handles the shopping cart or a login form. Although these components are independent, they still need to work together. A product component must inform the shopping cart when a user adds an item. A search box must send the entered keyword to the product list so it can display matching results. A login form must notify the main application after a successful login. The process that allows these components to excha...
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JavaScript If else statement

 JavaScript If..else statement


JavaScript If else statement


What is the JavaScript If else statement.

 1] When the given condition is true, a block of code is executed by the JavaScript if...else statement. 
2] The else block will be Execute in the event that the condition is false. 
3] A program's execution flow may be managed using the if-else statements depending on path.
4] There may be times when you have to choose one path from a list while building a software.
5]  In these situations, you must utilize conditional statements to enable your program to decide what to do and how to do it.

JavaScript If..else statement



Syntax :-


if (expression)
{
//statement evaluated  if condition True
}
else
{
statement evaluated if condition False
}


JavaScript If..else statement

Flowchart :-


JavaScript If..else statement





Q.JavaScript If ..else Statement  check student result.

Example :-


let marks= 90;
if(marks<=95)
{
    console.log("student pass");
}
else
{
    console.log("student failed");
}

Output :-
JavaScript If..else statement



Q.JavaScript If ..else Statement  Even or odd number.

Example :-


let x= 90;
if(x%2==0)
{
    console.log("Even number");
}
else
{
    console.log("odd number");
}

 

Output :-

JavaScript If..else statement

3 Q.JavaScript If ..else Statement  check student eligible for voting or not .

Example :-


let student_age= 21;
if(student_age>=18)
{
    console.log("student Eligible
for voting ");
}
else
{
    console.log("student not Eligible
for voting");
}

Output :-

JavaScript If..else statement


Related Post JavaScript :-

css column gap property

php if else statements

css box margin property

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