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Senior Frontend Developer Interview Questions

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1,280 senior frontend developer interview questions shared by candidates

In two hours build a take-home challenge that fetches a list of items from the server, displays them on a page, and allows the user to click into an item-detail page. Bonuses: write tests, write an items-refresh loop, write a list filter, provide details on visual choices
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Senior Frontend Developer

Interviewed at Twitch

3.7★
Jan 30, 2018

In two hours build a take-home challenge that fetches a list of items from the server, displays them on a page, and allows the user to click into an item-detail page. Bonuses: write tests, write an items-refresh loop, write a list filter, provide details on visual choices

class Foo { add5(value){ value = value + 5; return value; } addElement(arr, elem) { arr.push(elem); return arr; } increment(arr) { arr[0]++; return arr; } } let fooInstance = new Foo(); let a = 9; const arr1 = [1,2]; const arr2 = [1,2,1]; fooInstance.add5(a); fooInstance.addElement(arr1, 3); fooInstance.increment(arr2); console.log(a); // ??? console.log(arr1); // ?? console.log(arr2); // ??
avatar

Senior Frontend Developer

Interviewed at Zesty

4.1★
Oct 5, 2023

class Foo { add5(value){ value = value + 5; return value; } addElement(arr, elem) { arr.push(elem); return arr; } increment(arr) { arr[0]++; return arr; } } let fooInstance = new Foo(); let a = 9; const arr1 = [1,2]; const arr2 = [1,2,1]; fooInstance.add5(a); fooInstance.addElement(arr1, 3); fooInstance.increment(arr2); console.log(a); // ??? console.log(arr1); // ?? console.log(arr2); // ??

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