ABM Techno-Matrix Private Limited Customer Service Executive Interview Questions and Answers

Q1. Let var const difference
Ans. 
var, let, and const are all used to declare variables in JavaScript, but they have different scopes and mutability.
• var is function-scoped and can be redeclared and reassigned

• let is block-scoped and can be reassigned but not redeclared

• const is block-scoped and cannot be reassigned or redeclared
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Q2. Polyfills of bind method
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Polyfills of bind method provide a way to use the bind method in older browsers that do not support it natively.
• Polyfill code typically checks if the bind method is available and if not, it creates a new function that mimics the behavior of bind.

• One common polyfill for the bind method is the following: Function.prototype.bind = Function.prototype.bind || function() { // polyfill code here };

• Polyfills are often used to ...read more
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Q1. Make a search bar in React
Ans. 
Create a search bar component in React for filtering data
• Create a functional component for the search bar

• Use state to store the search query

• Implement a onChange event handler to update the search query

• Filter the data based on the search query
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Q2. React js core concepts
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Q1. How you structure your work
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Q2. How you make a project from scratch
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Q1. Speak about ypur experience
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Coding Test included communication test, apti and reasoning and coding.

Q1. SQL- Based Question
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Q2. HTML Question
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Q1. Javascript Question
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Q2. Thinking ability question
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Critical thinking, Logic, English

Q1. Dependency Injection in .NET
Ans. 
Dependency Injection in .NET is a design pattern where dependencies are injected into a class rather than created within the class.
• Dependency Injection helps in achieving loose coupling between classes.

• It allows for easier testing by enabling mock objects to be injected during testing.

• In .NET, Dependency Injection can be implemented using frameworks like Unity, Ninject, or built-in .NET Core DI container.

• Example: Const...read more
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Q1. Closures in JS. State management in Angular
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Closures in JS allow functions to access variables from their outer scope. Angular uses services for state management.
• Closures in JavaScript allow functions to access variables from their outer scope, even after the outer function has finished executing.

• Angular uses services to manage state in applications, allowing for centralized data management and communication between components.

• State management in Angular involve...read more
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