Product Perfect

**Python** is a general-purpose, interpreted, high-level programming language. It was created in the late 1980s by Guido van Rossum at the National Research Institute for Mathematics and Computer Science in the Netherlands. Python is designed to be easy to read and write, and it has a large standard library. It is used for a wide variety of applications, including web development, data science, and machine learning. Sources: * [Python](https://www.python.org/) * [History of Python](https://en.wikipedia.org/wiki/History_of_Python)

Ask the right questions secure the right Easy talent among an increasingly shrinking pool of talent.

First 20 minutes

General Easy app knowledge and experience

The first 20 minutes of the interview should seek to understand the candidate's general background in Easy application development, including their experience with various programming languages, databases, and their approach to designing scalable and maintainable systems.

What are the basic data types in JSON?

The basic data types in JSON are Number, String, Boolean, Array, Object, and null.

How would you parse a JSON file in a JavaScript program?

To parse a JSON file in JavaScript, you would use the JSON.parse() method.

What is the syntax to create an array in JSON?

The syntax to create an array in JSON is 'var arrayName = [item1, item2, ...];'

How would you create a nested object in JSON?

To create a nested object in JSON, you would define an object within another object.

What are the differences between JSON and XML?

JSON is data-oriented and easier to read and write, while XML is document-oriented and is more complex. JSON doesn't provide display capabilities while XML does. JSON is faster and easier to parse than XML.

The hiring guide has been successfully sent to your email address.

Oops! Something went wrong while submitting the form.

What you’re looking for early on

Does the candidate demonstrate a strong understanding of the Easy language?

Has the candidate shown problem-solving skills during the interview?

Is the candidate able to communicate effectively?

Does the candidate have relevant experience or projects?

Next 20 minutes

Specific Easy development questions

The next 20 minutes of the interview should focus on the candidate's expertise with specific backend frameworks, their understanding of RESTful APIs, and their experience in handling data storage and retrieval efficiently.

How would you convert a JSON data to a JavaScript object?

To convert JSON data to a JavaScript object, you would use the JSON.parse() method.

Describe the difference between JSON and JavaScript object?

JSON is a text format that is completely language independent but uses conventions that are familiar to programmers of the C-family of languages, including C, C++, C#, Java, JavaScript, Perl, Python, and many others. These properties make JSON an ideal data-interchange language. While, a JavaScript object is a collection of unordered properties.

How would you handle errors when parsing JSON in JavaScript?

To handle errors when parsing JSON in JavaScript, you would use a try-catch block to catch any errors that occur during the parsing process.

What are the uses of JSON?

JSON is used for storing and exchanging data, generating data structures from user input, and configuring and verifying data.

How would you validate a JSON string?

To validate a JSON string, you can use various online tools or libraries such as 'jsonlint'. In JavaScript, you can also use a try-catch block with JSON.parse().

The hiring guide has been successfully sent to your email address.

Oops! Something went wrong while submitting the form.

At this point, a skilled Easy engineer should demonstrate strong problem-solving abilities, proficiency in Easy programming language, and knowledge of software development methodologies. Red flags include lack of hands-on experience, inability to articulate complex concepts, or unfamiliarity with standard coding practices.

Digging deeper

Code questions

These will help you see the candidate's real-world development capabilities with Easy.

What does this simple JavaScript code do?
let x = 10;
let y = '5';
let z = x + y;
This code concatenates the string '5' to the number 10, resulting in the string '105'. JavaScript performs type coercion in such cases, converting the number to a string before concatenation.
What will be the output of this JavaScript code?
function test() {
  var x = 1;
  if (true) {
    var x = 2;
    console.log(x);
  }
  console.log(x);
}
test();
The output will be '2' and then '2'. This is because in JavaScript, the 'var' keyword does not have block scope, but function scope. So the second declaration of 'x' inside the 'if' block actually reassigns the 'x' declared in the function scope.
What does this JavaScript code do?
let arr = [1, 2, 3, 4, 5];
let sum = arr.reduce((a, b) => a + b, 0);
This code calculates the sum of all elements in the array. The 'reduce' method applies a function against an accumulator and each element in the array (from left to right) to reduce it to a single output value.
What does this JavaScript code do?
let promise = new Promise((resolve, reject) => {
  setTimeout(() => resolve('Done!'), 1000);
});
This code creates a new Promise that resolves with the value 'Done!' after 1 second. Promises are used for asynchronous computations and they represent a value which may be available now, or in the future, or never.

Wrap-up questions

Final candidate for Easy Developer role questions

The final few questions should evaluate the candidate's teamwork, communication, and problem-solving skills. Additionally, assess their knowledge of microservices architecture, serverless computing, and how they handle Easy application deployments. Inquire about their experience in handling system failures and their approach to debugging and troubleshooting.

Describe the difference between JSON and a JSON object?

JSON is a text format that is language independent, while a JSON object is a data structure in memory that can be manipulated by a programming language.

How would you access a value in a JSON object?

To access a value in a JSON object, you would use dot notation or bracket notation, e.g., jsonObject.property or jsonObject['property'].

What are the rules for creating a JSON object?

The rules for creating a JSON object are: Data is in name/value pairs, data is separated by commas, curly braces hold objects, and square brackets hold arrays.

Easy application related

Product Perfect's Easy development capabilities

Beyond hiring for your Easy engineering team, you may be in the market for additional help. Product Perfect provides seasoned expertise in Easy projects, and can engage in multiple capacities.

Easy Consultive assessments

Easy Application Conversion Assessment Easy Application Integration Assessment Easy Data & Database Integration Assessment

Custom Easy development projects

Custom Easy App Conversion Easy Custom App Development Process App UI Design for Easy Facelifts

Hiring guide for Easy Engineers

Easy Developer Hiring Guide

What you’re looking for early on

The ideal back-end app developer

What you’re looking to see on the Easy engineer at this point.

Easy Consultive assessments

Custom Easy development projects