To implement a function that return the result of a N async processes.
Senior Front End Developer Interview Questions
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did you know about audio and video tag in HTML5?
//Give me the output console for the following piece of code : var foo = 'foo'; function bar() { setTimeout(() => { console.log(foo); }, 0); console.log(foo); // undefined console.log(bar()); // undefined console.log(foo); // bartwo var foo = 'bar'; function bar() { foo = 'bartwo'; } console.log(foo); // bar } bar(); console.log(foo);
Outer join two arrays const a = [ { id: 3, name: 'Matt' }, { id: 4, name: 'Greg' }, { id: 1, name: 'David' }, { id: 2, name: 'John' } ] const b = [ { id: 7, position: 'Outlier' }, { id: 2, position: 'Leader' }, { id: 3, position: 'Captain' }, { id: 6, position: 'Rogue' }, { id: 4, position: 'VP' }, { id: 5, position: 'Pawn'} ] Should create the following joined array: [ { id: 1, name: 'David', position: null}, { id: 2, name: 'John', position: 'Leader' }, { id: 3, name: 'Matt', position: 'Captain' }, { id: 4, name: 'Greg', position: 'VP' }, { id: 5, position: 'Pawn', name: null } { id: 6, position: 'Rogue', name: null }, { id: 7, position: 'Outlier', name: null } ] Should create the following joined array: [ { id: 1, name: 'David', position: null }, { id: 2, name: 'John', position: 'Leader' }, { id: 3, name: 'Matt', position: 'Captain' }, { id: 4, name: 'Greg', position: 'VP' }, { id: 5, position: 'Pawn', name: null } { id: 6, position: 'Rogue', name: null }, { id: 7, position: 'Outlier', name: null } ]
How to handle authentication logic in React/Redux (e.g. OAuth2, OIDC)
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explain to me about micro-frontends, shadow-dom, and web components.
Create a dialog pop-up using plain HTML and Javascript. - Clicking the button should display a modal dialog with a form with two inputs and a submit button
1. General questions about JS and Async JS. 2. Some simple object manipulation and use of promises (with a fake backend emulated with the use of setTimeout). 3. A text based snake 4. Some basic CSS 5. A timer with a reset button
What is box-sizing: border-box CSS property?
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