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 #1 | Javascript Quiz ArenaQuiz Quiz #1 | Javascript Quiz By Coding Artist 2nd August 2022 0 825 Share Facebook Twitter Pinterest WhatsApp 0% 247 Quiz #1 1 / 10 var myAr = [10, 20, 30, 40];var newMyAr = [0, ...myAr, 50];console.log(newMyAr); [0,[10, 20, 30, 40, 50] [0, [10, 20, 30, 40], 50] [0, 10, 20, 30, 40, 50] 2 / 10 let p, q;[p, q] = [1];console.log(p, q); 1 1 1 undefined Throws SyntaxError undefined 1 3 / 10 if ( null || [ ] ) { console.log("Hello World");}What will the above code output to the console? Hello World No Output 4 / 10 console.log(null && 45);What will the above code output to the console? false null true 45 5 / 10 greet();function greet() { console.log("Hello");}function greet() { console.log("Hi");}What will the above code output to the console? Hello Undefined Hi Throws Reference Error 6 / 10 let myFunc = function () { console.log("hello 1");};let myFunc = function () { console.log("hello 2");};myFunc(); Throws SyntaxError Throws Reference Error hello 2 hello 1 7 / 10 var arr = [1, 2, 3, 4, 5];var arr1 = [...arr];arr1.push(6);console.log(arr); [1, 2, 3, 4, 5] [6] [1,2,3,4,5,6] 8 / 10 var arr = [1, 2, 3, 4, 5];var arr1 = arr;arr1.push(6);console.log(arr); [6] [1,2,3,4,5,6] [1, 2, 3, 4, 5] 9 / 10 var a = [1, 2];var b = [3, 4];var c = [...a, ...b];console.log(c); [1234] [1,2,3,4] [[1,2],[3,4]] 10 / 10 console.log(dog);var dog = "Daisy";What will the above code output to console? undefined null Console throws a reference error Daisy Nope! That wasn't the right answer Yippie! You got it right. Your score is The average score is 45% LinkedIn Facebook Twitter VKontakte 0% Restart quiz Tagscss advanced quizcss basic quizcss beginners quizcss fundamentals quizjavascriptjavascript MCQjavascript quizjavascript testquiz Share Facebook Twitter Pinterest WhatsApp Previous articleMCQ – 2/8/22Next articleFlashcard App 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:five × 4 = Most Popular Build a Fun Balloon Pop Game Using HTML, CSS, and JavaScript 3rd July 2025 Build an Analog Clock with HTML, CSS, and JavaScript 3rd July 2025 Responsive Pricing Cards with Hover Effect Using HTML and CSS 2nd July 2025 Flashlight Effect With HTML, CSS and Javascript 1st July 2025 Load more