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 0 683 Share Facebook Twitter Pinterest WhatsApp 199 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 student = { name: "Jim", age: 12, score: 80,};console.log(Object.values(student)); ['Jim', 12, 80] 'Jim', 12, 80 name, age, score [name, age, score] 3 / 10 if (null)console.log("Hello World");console.log("Hi");What will the above code output to the console? Throws an Error Hi No Output Hello World 4 / 10 let person = { name: "Mitali", a: 26,};var a = "name";console.log(person["a"]);What will the above code output to the console? age name Mitali 26 5 / 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] [1a, 2a, 3a, 4a] ['a', 'a', 'a', 'a'] 6 / 10 if ([] || false) { console.log("Hi");}What will above code output to the console? null No Output Throws an error Hi 7 / 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 8 / 10 var a = 10;var a = 20;console.log(a);What will the above code output to the console? 10 1020 Throws an Error 20 9 / 10 let num = 1.148;let val = num.toFixed(6);console.log(val);What will the above code output to the console? 1.148000 1.148 1.2 1.1 10 / 10 console.log([] && false);What will the above code output to the console? null Throws an error false [] 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:5 × 4 = Most Popular How to Create a Responsive Masonry Grid Gallery Using Pure CSS 30th May 2025 Build an Image Gallery with Search and Filter Using HTML, CSS, and JavaScript 28th May 2025 Fully Responsive Navigation Menu With Dropdown 26th May 2025 Build a Random Joke Generator with HTML, CSS & JavaScript 24th May 2025 Load more