PRASHANT CHAUDHARY
Senior AngularJS Developer
PREVIOUSLY AT

Flexiple spent good amount of time understanding our requirements, resulting in accurate recommendations and quick ramp up by quality developers.
Overall Flexiple brought in high-level of transparency with quick turnarounds in the hiring process at a significantly lower cost than any alternate options.
Flexiple has been instrumental in helping us grow at a fast pace. Their vetting process for engineers is top notch and they connected us with quality talent quickly.
Flexiple Developers are reviewed on their experience and complexity of products built. Those who display depth and have worked on end-to-end projects are given an introductory call.
Over a call, the developer’s ability to communicate in an articulate manner is tested. A deeper understanding of the candidate’s technical experience and also motivation to freelance is achieved.
Over one or more F2F interviews, the developer’s involvement and performance in building complex software products are assessed. This sets the platform to delve deeper into technology-specific discussions.
Developers' mental agility and problem-solving abilities are tested through a coding test involving algorithmic as well as skill-specific problems. A mixture of live evaluation and timed coding tests is used.
The live experience of working with developers is verified by reaching out to past clients and/or employers. Inputs on various qualitative factors such as reliability, punctuality, communication and responsiveness are received.
Performance during each engagement is continually assessed. Our developers are expected to maintain Flexiple standards across all engagements with our customers.
AngularJS is a framework used for building dynamic web apps, which was released as an open-source in 2010. Initially, it only supported web apps inside the browser but later extended its support to building native apps for iPhone as well as Android devices. According to Bacancy tech, about 900 thousand live websites are using AngularJS, and additional 2,311,914 sites have used AngularJS historically. The StackOverflow survey 2019 states that about 30.7% of software engineers use AngularJS and the new version Angular 2+ to create user interfaces.
If you’re looking to hire a freelance Angular developer for your company, this guide is going to help you find the perfect fit. We’ve included everything you need to know about hiring a great freelancr for your team.
Before diving into the fundamentals of hiring a freelance Angular developer, let's delve into some interesting facts about the history of Angular.
We have broken the sections into the following parts:
1. Let's introduce Angular to you.
2. Why is Angular widespread?
3. What are the tools used by Angular developers?
4. Writing the Job Description to hire Angular developers
5. Interview Questions for hiring an Angular developer
- Basic Questions
- Advanced Questions
- Data Structures/Algo Questions
Here are some of the tools that Angular developers make use of:
1. Angular IDE
Made by CodeMix, Angular IDE is the first choice for development for both beginners as well as experienced Angular developers. It offers highly useful features including real-time validation and auto-completion of code.
2. Protractor
This is an end-to-end testing tool that is specialized for Angular and AngularJS development. It automatically syncs the web pages with the testing sessions, a unique feature that ensures a thorough testing experience.
3. NG-Inspector
NG-Inspector is a browser extension that helps you to test and debug your code comfortably from your browser. It can be used on Safari and Google Chrome to test the hierarchy of Angular scope on the page.
4. Restangular
When there is a heavy dependence on the data from REST APIs, Restangular is a must-have tool. It powers commands that enable you to fetch data from REST APIs with minimal need for coding these commands.
5. Angular-gettext
A necessary tool for new Angular developers, Angular-gettext processes the code written and converts it into natural language. This way, developers can understand components in simple terms.
Below are some key points that we at Flexiple have learned through trial and error - a process of filtering through over 15,000 developers.
You can check out a more detailed Angular developer job description here.
Now that you have made a quality JD, it can still be tricky to evaluate the skills of your applicants. To help you with that, we have created a pool of questions that a good Angular developer should be comfortable with. You can check out some more Angular interview questions here.
It is important to note that the ability to answer these questions doesn't imply that you have a top quality candidate. But it definitely is a big step in that direction.
To help you navigate through these questions, we’ve categorized the interview questions in 3 parts:
A. Basic concepts: Includes all basic concepts used across languages but we've focused on their significance in Angular. This will give you an understanding of how strong their programming foundation is.
B. Advanced concepts: Includes all concepts that someone with higher expertise should know.
C. DS/Algorithm questions: To test the logical capability of the candidate.
Angular and AngularJS are two entirely different and unrelated frontend frameworks, although both are built by Google and have the same prefix in their name. AngularJS was released in 2010 and it was eventually replaced by Angular. Angular 7 is the latest version of Angular.
Angular is a TypeScript based development platform whereas AngularJS is a JavaScript-based platform.
Angular 7 comes with powerful methods to easily build frontend applications. These features include support for two-way data binding, Angular Elements, CLI workspaces, Extended library support, Animation improvements, RxJS, etc.
Two-way binding is a common Angular 7 interview question. It is a process in Angular that gives components a way to share data between the component class and its template. In essence, if the data is changed in one place it will automatically change the data at the other end.
Two-way binding is commonly used to listen for events and update values between parent and child components.
This is yet another very common Angular 7 interview question.
Metadata is used to decorate a class and hence it is always represented in the decorator. This helps the class exhibit the desired behavior.
The below code is an example of using metadata in Class decorators:
import { NgModule, Component } from '@angular/core'; @Component({ selector: 'new-component', template: 'Class decorator', }) export class NewComponent { constructor() { console.log('This is a new component!'); } } @NgModule({ imports: [], declarations: [], }) export class NewModule { constructor() { console.log('This is a new Module'); } }
Pipes receive input data and transform it into the desired output so that it can be displayed properly.
Example - In the below code we have used the DatePipe to display a date in the desired format.
import { Component } from '@angular/core'; @Component({ selector: 'app-birthday', template: `Date is {{ birthday | date }}
` }) export class BirthdayComponent { day = new Date(2021, 7, 21); // July 7, 2021 }
class ValidParenthesesFunc { func isValid(_ s: String) -> Bool { var sta = [Character]() for char in s { if char == "(" || char == "[" || char == "{" { sta.append(char) } else if char == ")" { guard sta.count != 0 && sta.removeLast() == "(" else { return false } } else if char == "]" { guard sta.count != 0 && sta.removeLast() == "[" else { return false } } else if char == "}" { guard sta.count != 0 && sta.removeLast() == "{" else { return false } } } return sta.isEmpty } }
The above code will input 0(false).
var p = 10; var q = 5; var r = 3; if (p / q / r) document.write("hi"); else document.write("hello");
The answer is A because the floating-point division returns a non zero value = 0.66 which evaluates to true and outputs ‘hi’.
var a = 2; var b = 4; var c = 6; if (a > b > c) document.write("true"); else document.write("false");
The answer is False. It may look like the output can be true because 6 > 4 > 2 is true, but PHP evaluates $z > $y first, which returns a boolean value of 1 or true. This value (true or 1) is compared to the next integer in the chain, bool(1) > $z, which will result in NULL and echo “false.”