Sign in Welcome! Log into your account your username your password Forgot your password? Get help Password recovery Recover your password your email A password will be e-mailed to you. HomeArenaQuiz #10 ArenaQuiz Quiz #10 By Coding Artist 2nd January 2023 0 636 Share Facebook Twitter Pinterest WhatsApp 197 Created by Coding Artist Quiz #10 1 / 10 let arr = [10, 20, 30, 40, 50];console.log(arr[arr.length]);What will the above code output to the console? undefined Throws an error 5 50 2 / 10 let person = { name: "Mitali", a: 26,};var a = "name";console.log(person[a]);What will the above code output to the console? 26 age name Mitali 3 / 10 var arr = [1, 2, 3, 4];var res = arr.map(function (a, i) { return "a";});console.log(res);What will the above code output to the console? [1, 2, 3, 4] [a, a, a, a] ['a', 'a', 'a', 'a'] [1a, 2a, 3a, 4a] 4 / 10 let person = { name: "Mitali", a: 26,};var a = "name";console.log(person["a"]);What will the above code output to the console? name 26 age Mitali 5 / 10 let student = { name: "Jim", age: 12, score: 80,};console.log(Object.values(student)); name, age, score 'Jim', 12, 80 [name, age, score] ['Jim', 12, 80] 6 / 10 var a = 10;var a = 20;console.log(a);What will the above code output to the console? 10 20 Throws an Error 1020 7 / 10 let num = 1.148;let val = num.toFixed(6);console.log(val);What will the above code output to the console? 1.148 1.1 1.2 1.148000 8 / 10 if (null)console.log("Hello World");console.log("Hi");What will the above code output to the console? Throws an Error Hi Hello World No Output 9 / 10 console.log([] && false);What will the above code output to the console? [] false null Throws an error 10 / 10 if ([] || false) { console.log("Hi");}What will above code output to the console? No Output Throws an error Hi null Your score is The average score is 44% LinkedIn Facebook Twitter VKontakte 0% Restart quiz Tagscss advanced quizjavascript quizjavascript quiz for beginnersquizquiz app javascriptquiz bank Share Facebook Twitter Pinterest WhatsApp Previous articleMCQ – 1/1/23Next articleGet File Name From File Input With Javascript Coding Artist RELATED ARTICLES Arena Javascript Quiz For Intermediates 24th July 2023 Arena Javascript Quiz For Beginners 16th July 2023 Arena MCQ – 10/2/23 10th February 2023 LEAVE A REPLY Cancel reply Comment: Please enter your comment! Name:* Please enter your name here Email:* You have entered an incorrect email address! Please enter your email address here Website: Save my name, email, and website in this browser for the next time I comment. Please enter an answer in digits:3 + eleven = Most Popular Custom Modal Using HTML, CSS, and JavaScript 28th October 2024 Sticky Notes | Step by Step Javascript Project 25th October 2024 Card Hover Effect | HTML & CSS Effect 21st October 2024 Rotating Loader | HTML & CSS Loading Animation 14th October 2024 Load more