How to Hire a Good JavaScript Developer…
As with any technology, there’s knowing JavaScript and then there’s really knowing JavaScript.
Let me share a couple of proven & effective techniques and questions for finding true masters of the language.
Note:
These sample questions are intended merely as a guide.
Alert
Not every candidate worth hiring will be able to properly answer them all, nor does answering them all guarantee a candidate.
At the end of the day, hiring remains as much of an art as it does a science.
JavaScript is in the world of tech today has become fundamental.
Hiring a well-qualified and talented JavaScript developer can be a problem.
During the interview, it’s important to test the knowledge of a candidate.
JS developer skill set that every specialist should have.
- Problem-solving.
- Creativity.
- Work in a team.
- Follow trends.
Q1: Describe inheritance and the prototype chain in JavaScript.
Here’s a simple example:
Q2: Consider the code snippet below (source).
What will the alert display?
Explain your answer.
Q3: Explain closures in JavaScript.
- What are they?
- What are some of their unique features?
- How and why might you want to use them?
- Provide an example.
Q4: Is there ever any practical difference between defining a function as a function expression
e.g.., var foo = function(){}
OR
As a function statement
e.g., function foo(){}
Explain your answer.
Q5: How can JavaScript be used to improve accessibility on the web?
Q6: What does ‘use strict’ mean at the top of a block of code?
Q7: What does the term ‘hoisting’ mean in reference to JavaScript?
Q8: What is the difference between == and ===?
Between != and !==?
Give an example?
In the end,
Good soft skills are also important because they allow candidates to be effective in the workplace.
- Conflict management
- Creativity
- Decision making
- Teamwork
- Response to specific actions
If you’re a beginner at JavaScript and want to learn JavaScript e2e concepts, here’s a great course by Robin aka WellPaidGeek who is coding for 20+ years.
I highly recommend buying this course.
Here is the link if someone is interested.
Thanks for reading.
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