Instead of testing tasks that no one likes to do, we often do simple life coding. It’s mostly a code example and a question: what will happen? of the candidate, how he behaves when he makes a mistake. Its strengths and weaknesses are immeiately visible. There are a number of tasks from simple to complex, which give an opportunity to see how the candidate thinks,” Oleksandr Barilo shares. General questions 116. What is an Event Loop? 117. What is the difference between forEach and map? 118. What is the difference between the “in” operator and the hasOwnProperty method? 119. What is the difference between proto and prototype? 120. The user has disable JavaScript in the browser.
What are module bundles
How do we run the code in his browser? 121. Why type of null returns object? How to check if a value is null? 122. What is currying in JS? 123. What are promise Morocco Phone Number List objects, promise methods? 124. What is the difference between Gulp and Grunt? 125? 126. How do you use GIT? 127. What is Vanilla JS? 128. Is the use of unary plus (the “+” operator) the most prominent way to convert a string to a number? 129. What is CORS and why is it neee? 130. What is the difference between the behavior of isNaN() and Number.isNaN()? 131. How does async/await differ from Promise.
The difference between explicit
Why does obj.someprop.x cause an error? 133. What is and implicit transformation or reuction to type (Implicit and Explicit Coercion)? 134. How to AERO Leads check if a value is an array? 135. How to check that a number is even without using division by modulo or division with a remainder? 136. What is the difference between Object.freeze and Object.seal methods? 137. What methods of working with asynchronous code in JS do you know.
