What is package.json in Node.js? Features, Uses and Examples

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  Introduction to package.json  in Node.js When developers start working with Node.js , they often create projects using different libraries, frameworks, and tools. Managing all these project requirements manually can become difficult. This is where the package.json file becomes useful. The package.json file is an important part of almost every Node.js project. It stores essential information about an application, including its name, version, description, dependencies , development tools, and scripts. 2. What is package.json The package.json file is a JSON (JavaScript Object Notation) file used in Node.js projects to store project information and configuration. It works as a project information file that describes the application and tells npm which packages, scripts, and other settings are required. Every Node.js project can have its own package.json file. It is generally located in the root directory of the project. For example , consider a project named m...
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JavaScript Comparison Operators

 

JavaScript Comparison Operators



 Comparison Operators   

    1] Equal  to  (==)

   2]  Equal value and equal type (= = =)

   3] Not equal (! =)

   4] Not equal value or not equal type (! = =)

   5] Greater than ( > )

   6] less than (< )

   7] Greater than or equal to (> = )

   8] less than or equal to (< =)

 Example :-

Comparison Operators

   1] Equal  to  (==)

 Check the two  value  equal or not 

Answer is True or False

Two value is equal  is = True

 Two value is not  equal is = False

Example :-


var a=2;
var b=2;
console.log(a==b);

Output:-



   2]  Equal value and equal type (= = =)

       Check two values are equal and of the same .

       Two value is equal  is = True

       Two value is not  equal is = False

Example :-

var a=7;
var b="7";
console.log(a===b);
Output:-



   3] Not equal (! =)

Check  two values are not equal 
 than Answer is  True

Example :-


var z=7;
var  y=5;
console.log(z!=y);

Output:-



   4] Not equal value or not equal type (! = =)

Example :-


var z=7;
var  y="7";
console.log(z!==y);

Output:-



   5] Greater than ( > )
Example :-

var z=7;
var  y=5;
console.log(z>y);



Output:-



   6] less than (< )
Example :-


var z=7;
var  y=5;
console.log(z<y);

Output:-



   7] Greater than or equal to (> = )
Example :-


var z=7;
var  y=5;
console.log(z>=y);

Output:-



   8] less than or equal to (< =)
Example :-


var z=7;
var  y=5;
console.log(z<=y);

Output:-



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