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 0 660 Share Facebook Twitter Pinterest WhatsApp 197 Created by Coding Artist Quiz #10 1 / 10 if (null)console.log("Hello World");console.log("Hi");What will the above code output to the console? No Output Throws an Error Hello World Hi 2 / 10 let arr = [10, 20, 30, 40, 50];console.log(arr[arr.length]);What will the above code output to the console? Throws an error 50 5 undefined 3 / 10 var a = 10;var a = 20;console.log(a);What will the above code output to the console? Throws an Error 1020 20 10 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 age 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 let student = { name: "Jim", age: 12, score: 80,};console.log(Object.values(student)); 'Jim', 12, 80 name, age, score ['Jim', 12, 80] [name, age, score] 7 / 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 Mitali age 8 / 10 console.log([] && false);What will the above code output to the console? null [] false Throws an error 9 / 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 10 / 10 if ([] || false) { console.log("Hi");}What will above code output to the console? Hi No Output null Throws an error 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:1 × 3 = Most Popular Building a Roman Numeral Converter with JavaScript 20th January 2025 Building a Stunning 3D Rotating Cube with HTML and CSS 17th January 2025 Creating an Interactive Loan Calculator with HTML, CSS, and JavaScript 15th January 2025 How to Create a Button to Clear an Input Field Using JavaScript 13th January 2025 Load more