Primus Software Corporation Senior Software Developer Interview Questions and Answers

Q1. What are the solid principal
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Q1. Basic css,js,reactjs questions
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Q2. Reactjs coding questions related to array, mapping
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Q3. Difference between ecma6 and ecma5
Ans. 
ECMA6 introduced new features like arrow functions, classes, and let/const declarations compared to ECMA5.
• ECMA6 introduced arrow functions for more concise syntax: const add = (a, b) => a + b;

• ECMA6 added classes for object-oriented programming: class Person { constructor(name) { this.name = name; } }

• ECMA6 introduced let/const declarations for block-scoped variables: let x = 5; const y = 10;
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Q4. Form in reactjs
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Form handling in ReactJS involves creating controlled components to manage form data and handle user input.
• Use state to manage form data and update it with user input

• Handle form submission with onSubmit event handler

• Use controlled components to ensure form data is synced with state
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Q5. Box-modal, arrow function, DOM
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Give 10 questions from node js backend

Q1. Ask about angular and node js
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Q2. What is package.json
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package.json is a file used in Node.js projects to manage dependencies, scripts, and metadata.
• It is a JSON file that contains information about the project, such as name, version, dependencies, and scripts.

• It is used to manage project dependencies by listing them in the 'dependencies' and 'devDependencies' fields.

• It allows developers to define scripts for tasks like building, testing, and running the project.

• Example: {...read more
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Q3. What is components in angular,how share data to component
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Components in Angular are building blocks of an application. Data can be shared between components using input properties and output events.
• Components in Angular are reusable, self-contained units of code that define a part of the user interface.

• Data can be shared to a component using input properties, where data is passed from the parent component to the child component.

• Data can also be shared from a child component t...read more
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Q4. What is === and == ,and wher use === is real time projects
Ans. 
=== is strict equality operator, while == is loose equality operator. === is commonly used in real-time projects for accurate comparisons.
• === is a strict equality operator that checks both value and type of operands

• == is a loose equality operator that only checks the value of operands

• === is commonly used in real-time projects to ensure accurate comparisons and prevent unexpected type coercion issues
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Q5. Write arrow function syntax
Ans. 
Arrow function syntax in JavaScript
• Arrow functions are concise syntax for writing function expressions in JavaScript

• They have a shorter syntax compared to traditional function expressions

• They do not have their own 'this', 'arguments', 'super', or 'new.target' keywords
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Q6. What is difference between arrow function and anonymous function
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Arrow functions are concise syntax for writing function expressions, while anonymous functions do not have a name.
• Arrow functions have a shorter syntax compared to anonymous functions.

• Arrow functions do not have their own 'this' keyword, while anonymous functions do.

• Arrow functions do not have 'arguments' object, while anonymous functions do.

• Arrow functions are not hoisted, while anonymous functions are hoisted.
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Full c concept MCQ with IQ and Computaional Thinking

Q1. Number system convertion in c
Ans. 
Number system conversion in C involves converting numbers between different bases, such as decimal to binary or hexadecimal.
• Use functions like itoa() to convert integers to strings in different bases

• Use strtol() to convert strings to integers in different bases

• Remember to specify the base when converting numbers
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Q2. Pointers, struct, Data Structure
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Q1. Decimal to Binary Convertion
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Q2. Hexa Decimal to Binary convertion
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Aptitude questions with some basic coding questions

They have given 3 coding questions and some pseudo codings

Q1. Tell about your self
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Q2. Some coding questions
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Q1. What are the main principles of the Java
Ans. 
Main principles of Java include object-oriented programming, platform independence, and automatic memory management.
• Object-oriented programming: Java is based on classes and objects, allowing for encapsulation, inheritance, and polymorphism.

• Platform independence: Java code can run on any platform that has a Java Virtual Machine (JVM) installed.

• Automatic memory management: Java uses garbage collection to automatically m
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Q2. What is the different between == and equals method
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The == operator compares the memory addresses of two objects, while the equals method compares the content of two objects.
• The == operator is used to compare the memory addresses of two objects in Java.

• The equals method is used to compare the content of two objects in Java.

• Example: String str1 = new String("hello"); String str2 = new String("hello"); str1 == str2 will return false, but str1.equals(str2) will return true
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Aptitude, reasoning,java MCQS

Q1. Technical round
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Q1. Second technical round
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Q1. HR and package discussion
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Q1. Explain process for SDE
Ans. 
The process for Software Development Engineer involves planning, designing, coding, testing, and deploying software solutions.
• Gather requirements from stakeholders

• Create a design based on requirements

• Write code to implement the design

• Test the software for bugs and issues

• Deploy the software for users to use

• Iterate on feedback and make improvements
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