var a = {a: 1} var b = Object.create(a) console.log(a) and console.log(b) a.a = 2 console.log(b.a) The interviewer got confused and said that the prototype is copied to b and if we change a.a it will not have any impact on b.a. But rather b's __proto__ will have a link to a and if we change or delete a.a it will be reflected in b
Write a polyfill for map and reduce
How to position the div - horizontally and vertically aligned with css
Create a BarGraph component - The required interface for the componant is to accept the following props and render the UI in the image above: const DATA = [ { label: "A", value: 5 }, { label: "C", value: 2 }, { label: "B", value: 23 }, ]; const COLORS_PALETTE = ["#ff0000", "#ff8000", "#00ff80"]; Additional Requirements Graph Size - should be based on the width / height props (e.g. "100px", you can assume the provided values will be strings with px suffix). Graph Padding - A padding of 5px (vertical and horizontal) should exist between the graph-area's border and the columns. Column Height - Columns should indicate their value by their height, have a minimum height of 5px and the highest column value should fill the graph's height. Column Width Each column should have 8px of spacing to the columns near it, and they should fill the available graph width, while having a minimum width of 15px. Data points can be assumed to fit in the graph width. Data Points - Each data point has a label which is a single capital letter, and an non-negative number, e.g. { label: "A", value: 42 }. Labels - Should only be displayed for the X axis (under the graph), and not for the Y axis. Coloring - Column colors should be cyclic - first color for the first column, second for the second, and so on, until there are no more colors, and then the same order should be used again.
The questions were completely different from the job description that was sent to me. They didn't ask any technical question but rather asked me about managing teams.
Program to check if the string has alternate 1s and 0s then return yes and if not return no.
Explain how you overcame a particularly difficult challenge.
The repeating javascript questions that you will find on the web. Closures Prototype The interviewer was not familiar with the topics he was asking. Seems like he just googling it.
What is React Fiber, Reconciliation, Virtual DOM, Diff between Sockets & HTTP request
javascript currying and higher order functions
Viewing 481 - 490 interview questions