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XML Namespaces in Android

JavaScript | Namespace

Last Updated : 22 Dec, 2023

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Namespace refers to the programming paradigm of providing scope to the identifiers (names of types, functions, variables, etc) to prevent collisions between them. For instance, the same variable name might be required in a program in different contexts. Using namespaces in such a scenario will isolate these contexts such that the same identifier can be used in different namespaces.

Syntax:

//  To initialize an empty namespace   let <namespace> = {}; 
//  To access variables in the namespace
<namespace>.<identifier>

Example: As shown below, the identifier startEngine is used to denote different functions in car and bike objects. In this manner, we can use the same identifier in different namespaces by attaching it to different global objects.

javascript

   let car = { 
    startEngine: function () { 
        console.log("Car started");             
    }         
} 
 
let bike = { 
    startEngine: function () { 
        console.log("Bike started"); 
    } 
} 
 
car.startEngine(); 
bike.startEngine(); 
 
  

Output

Car started Bike started

XML Namespaces in Android

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Article Tags :

JavaScript
Web Technologies
javascript-basics

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