© 2026 LinearBytes Inc.
Search posts, tags, users, and pages
Satyam Yadav
Software Engineer at Microsoft
Do you know the answer to this tricky javascript interview problem about objects and their properties? Even if you correctly guess the answer, do watch till the end because I also talk about a new and cool ES6 feature related to the same problem. If ...
Question: 1
a = [1,2,3,4]; a['abc']="5"; a.length =0; console.log(a[2]);// ? console.log(a.abc);// ?
Question: 2
a = {a: 1, b: 2, c: null, d: undefined}; b = JSON.parse(JSON.stringify(a)); console.log(b);//?
Question: 3
//Write code such that, if I write a = [...10] //Now if I print a, then output should be console.log(a);//[1,2,3,4,5,6,7,8,9,10]
Biplab Malakar
Senior Software Engineer, JavaScript Developer, MEAN Developer, Node.js Developer, MERN Developer, Hybrid Mobile App Developer and ML Develo
Question: 1
a = [1,2,3,4]; a['abc']="5"; a.length =0; console.log(a[2]);// ? console.log(a.abc);// ?Question: 2
a = {a: 1, b: 2, c: null, d: undefined}; b = JSON.parse(JSON.stringify(a)); console.log(b);//?Question: 3
//Write code such that, if I write a = [...10] //Now if I print a, then output should be console.log(a);//[1,2,3,4,5,6,7,8,9,10]