Sketch Brahma Technologies Interview Questions and Answers

To find occurrences of a word in a sentence, we can use string methods to count how many times it appears.

• Use the split method: Split the sentence into an array of words and then filter to count occurrences. Example: 'hello world hello'.split(' ').filter(word => word === 'hello').length.

• Regular expressions: Use regex to match the word in a case-insensitive manner. Example: 'hello world hello'.match(/hello/gi).l...read more

Find pairs in an array that sum to zero, useful for identifying complementary values in data sets.

• Use a HashSet: Store elements in a HashSet and check if the negative of each element exists.

• Example: For array [-1, 1, 2, -2], pairs are (-1, 1) and (2, -2).

• Sorting Method: Sort the array and use two pointers to find pairs that sum to zero.

• Example: In sorted array [-2, -1, 0, 1, 2], pairs are (-2, 2) and (-1, 1).

• Time ...read more

Decorators in Angular are a design pattern that allows you to add behavior to classes, properties, or methods.

• Decorators are functions that are prefixed with @ and are used to modify classes or properties in Angular.

• They are commonly used for metadata annotations, dependency injection, and to define component behavior.

• Examples include @Component, @Injectable, @Input, @Output, @ViewChild, etc.

Inceptors are services in Angular that allow for intercepting and transforming HTTP requests and responses.

• Inceptors are used to modify HTTP requests before they are sent and HTTP responses before they are received.

• They can be used for tasks like adding headers, logging, error handling, and caching.

• Inceptors are commonly used in Angular applications to handle authentication tokens, error handling, and API requests...read more

Scss/Sass is a CSS preprocessor that adds features like variables, nesting, and mixins to make writing CSS easier and more efficient.

• Scss/Sass stands for Syntactically Awesome Style Sheets

• It is a CSS preprocessor that compiles into regular CSS

• It adds features like variables, nesting, and mixins to make writing CSS easier and more efficient

• It also allows for more advanced features like functions and loops

• Example: $...read more

Types of binding in Angular include interpolation, property binding, event binding, two-way binding, and attribute binding.

• Interpolation: {{ data }}

• Property binding: [property]="data"

• Event binding: (event)="function()"

• Two-way binding: [(ngModel)]="data"

• Attribute binding: [attr.attributeName]="data"