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Shallow copy only copies the references of nested objects, while deep copy creates new copies of nested objects.
Shallow copy creates a new object but does not create copies of nested objects.
Deep copy creates a new object and also creates copies of nested objects.
Shallow copy is faster and more memory efficient, but changes to nested objects affect both original and copied objects.
Deep copy is slower and consumes ...
ES6 features are modern JavaScript enhancements that improve code readability and efficiency.
Arrow functions for concise syntax: const add = (a, b) => a + b;
Let and const for block-scoped variables: let x = 5; const y = 10;
Template literals for string interpolation: const name = 'John'; console.log(`Hello, ${name}!`);
Destructuring assignment for easily extracting values from arrays or objects: const { firstName...
Subject vs BehaviourSubject in Angular
Subject is a basic observable that emits values to subscribers
BehaviourSubject is a type of Subject that stores the latest value and emits it to new subscribers
BehaviourSubject requires an initial value when created
Wildcard routes in Angular allow for handling unknown routes and redirecting to a default route.
Wildcard route is denoted by '**' in the route configuration.
It is typically used at the end of the route configuration to handle unknown routes.
Example: { path: '**', redirectTo: '/404' }
ForkJoin is an operator in Angular that allows for parallel execution of multiple observables.
ForkJoin combines the values from multiple observables and emits them as an array when all observables complete.
It waits for all observables to complete and then emits the combined result.
Example: forkJoin([observable1, observable2]).subscribe(result => console.log(result));
Handle errors in fetching API calls by implementing error handling mechanisms.
Use try-catch blocks to catch errors during API calls
Implement error handling logic in the catch block to handle different types of errors
Display user-friendly error messages to inform users about the issue
Use HTTP status codes to identify the type of error (e.g. 404 for not found)
Implement retry mechanisms for temporary network issues
Custom pipes in Angular are used to transform data in templates.
Custom pipes are created using the @Pipe decorator in Angular.
To use a custom pipe in HTML, you need to include it in the declarations array of the NgModule.
You can pass parameters to custom pipes in HTML using the pipe symbol (|).
Example: {{ value | customPipe:param1:param2 }}
ng-template, ng-content, and ng-container are Angular structural directives used for template rendering and content projection.
ng-template is used to define a template that can be rendered conditionally or multiple times.
ng-content is used for content projection, allowing the insertion of content from a parent component into a child component.
ng-container is a grouping element that doesn't interfere with styles or...
Arrow functions are concise and do not bind their own 'this' value, while regular functions have their own 'this' value and can be used as constructors.
Arrow functions have a more concise syntax compared to regular functions.
Arrow functions do not have their own 'this' value, they inherit it from the parent scope.
Regular functions have their own 'this' value, which can be useful for object-oriented programming and...
I appeared for an interview in Dec 2024.
ES6 features are modern JavaScript enhancements that improve code readability and efficiency.
Arrow functions for concise syntax: const add = (a, b) => a + b;
Let and const for block-scoped variables: let x = 5; const y = 10;
Template literals for string interpolation: const name = 'John'; console.log(`Hello, ${name}!`);
Destructuring assignment for easily extracting values from arrays or objects: const { firstName, las...
Shallow copy only copies the references of nested objects, while deep copy creates new copies of nested objects.
Shallow copy creates a new object but does not create copies of nested objects.
Deep copy creates a new object and also creates copies of nested objects.
Shallow copy is faster and more memory efficient, but changes to nested objects affect both original and copied objects.
Deep copy is slower and consumes more ...
Arrow functions are concise and do not bind their own 'this' value, while regular functions have their own 'this' value and can be used as constructors.
Arrow functions have a more concise syntax compared to regular functions.
Arrow functions do not have their own 'this' value, they inherit it from the parent scope.
Regular functions have their own 'this' value, which can be useful for object-oriented programming and cons...
Subject vs BehaviourSubject in Angular
Subject is a basic observable that emits values to subscribers
BehaviourSubject is a type of Subject that stores the latest value and emits it to new subscribers
BehaviourSubject requires an initial value when created
Custom pipes in Angular are used to transform data in templates.
Custom pipes are created using the @Pipe decorator in Angular.
To use a custom pipe in HTML, you need to include it in the declarations array of the NgModule.
You can pass parameters to custom pipes in HTML using the pipe symbol (|).
Example: {{ value | customPipe:param1:param2 }}
ng-template, ng-content, and ng-container are Angular structural directives used for template rendering and content projection.
ng-template is used to define a template that can be rendered conditionally or multiple times.
ng-content is used for content projection, allowing the insertion of content from a parent component into a child component.
ng-container is a grouping element that doesn't interfere with styles or layo...
ForkJoin is an operator in Angular that allows for parallel execution of multiple observables.
ForkJoin combines the values from multiple observables and emits them as an array when all observables complete.
It waits for all observables to complete and then emits the combined result.
Example: forkJoin([observable1, observable2]).subscribe(result => console.log(result));
Wildcard routes in Angular allow for handling unknown routes and redirecting to a default route.
Wildcard route is denoted by '**' in the route configuration.
It is typically used at the end of the route configuration to handle unknown routes.
Example: { path: '**', redirectTo: '/404' }
Handle errors in fetching API calls by implementing error handling mechanisms.
Use try-catch blocks to catch errors during API calls
Implement error handling logic in the catch block to handle different types of errors
Display user-friendly error messages to inform users about the issue
Use HTTP status codes to identify the type of error (e.g. 404 for not found)
Implement retry mechanisms for temporary network issues
I have extensive experience in Angular development, strong problem-solving skills, and a proven track record of delivering high-quality projects on time.
I have X years of experience working with Angular framework
I have successfully completed projects A, B, and C using Angular
I am proficient in problem-solving and troubleshooting issues in Angular applications
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I applied via Approached by Company and was interviewed before Sep 2021. There were 2 interview rounds.
I applied via Naukri.com and was interviewed in May 2021. There were 4 interview rounds.
I applied via Recruitment Consulltant and was interviewed before Oct 2021. There were 4 interview rounds.
It was technical aptitude test on hackerearth
Dictionaries and hash maps are key-value data structures that provide fast data retrieval and storage using hashing techniques.
Dictionaries store data in key-value pairs, e.g., {'name': 'Alice', 'age': 30}.
Hash maps use a hash function to compute an index for storing values, ensuring O(1) average time complexity for lookups.
Collisions occur when multiple keys hash to the same index; they can be resolved using chaining ...
I applied via Monster and was interviewed before Dec 2021. There were 5 interview rounds.
Java, SQL, SDLC agile, db queries, Http response and request codes status
Finding second largest element in an array without sorting using hash set.
Create a hash set and iterate through the array, adding each element to the set.
Initialize two variables to keep track of the largest and second largest elements.
Iterate through the set and compare each element to the largest and second largest variables.
Return the second largest variable.
I applied via Naukri.com and was interviewed in Jul 2021. There were 5 interview rounds.
The time complexity of swap array program is O(n).
The time complexity is determined by the number of elements in the array.
The program swaps the elements of the array one by one, so it takes linear time.
The Big O notation for the time complexity is O(n), where n is the number of elements in the array.
Examples: swapping two elements in an array takes constant time, but swapping all elements takes linear time.
I applied via Referral and was interviewed before Jul 2021. There were 4 interview rounds.
2-3 days coding test to develop basic Android app
posted on 13 Nov 2021
I applied via Naukri.com and was interviewed in May 2021. There were 3 interview rounds.
I applied via Company Website and was interviewed in May 2021. There were 4 interview rounds.
I applied via Naukri.com and was interviewed in Jul 2021. There were 4 interview rounds.
based on 1 interview experience
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