Questions Bank Analyze the following code: let colors = [‘red’, ‘green’, ‘blue’]; for (let c of colors) console.log(c); What will appear on the console as a result?OpenProgrammingAnswers asked 2 years ago • JavaScript Essentials 1We declare a movie object, with two fields: title and year: let movie = { title: “aga”, year: 2018 }; To change the value of the title field to ”Ága” we need to perform:OpenProgrammingAnswers asked 2 years ago • JavaScript Essentials 1Analyze the code snippet: let winter = [“December”, “January”, “February”]; let index = winter.indexOf(“February”); The index variable will have the value:OpenProgrammingAnswers asked 2 years ago • JavaScript Essentials 1Analyze the following code: let a = true && 20; let b = 0 || 20 let c = 0 && 20; console.log(‘${a} ${b} ${c}’); What will appear in the console as a result of its execution?OpenProgrammingAnswers asked 2 years ago • JavaScript Essentials 1Examine the following code: let x = mult(2)(10); console.log(x); // -> 20 What should the mult function declaration look like if the execution of this code results in a value of 20 in the console?OpenProgrammingAnswers asked 2 years ago • JavaScript Essentials 1Analyze the following code: let x = false || true; let y = “true” && “false”; let z = false && true; console.log(‘${x} ${y} ${z}’); What will appear in the console as a result of its execution?OpenProgrammingAnswers asked 2 years ago • JavaScript Essentials 1Analyze the following code: const a = “hello”; try { console.log(a.toUpperCase()); } catch (error) { console.log(a) } finally { console.log(a); } What will happen as a result of its execution?OpenProgrammingAnswers asked 2 years ago • JavaScript Essentials 1We have declared an array of animals: let animals = [“canary”, “dog”, “cat”];. Then we call the method animals.push(“hamster”);. As a result, the animals array will look like this:OpenProgrammingAnswers asked 2 years ago • JavaScript Essentials 1In the daysOfWeek variable, we place an array with the names of the days of the week. To reverse the order of the array elements, we should call:OpenProgrammingAnswers asked 2 years ago • JavaScript Essentials 1Review the following code: let msg1 = ‘hello’; let msg2 = msg1.slice(-1); console.log(msg2 ? msg2 : msg2 + msg1); What will appear on the console as a result?OpenProgrammingAnswers asked 2 years ago • JavaScript Essentials 1Examine the following code: let x = [10, 20, 30, 40]; let y = [50, 60]; x.reverse().push(y); console.log(x.length); What will appear on the console as a result?OpenProgrammingAnswers asked 2 years ago • JavaScript Essentials 1Using the string interpolation technique, we can create the string ”I do not like travelling by plane” and store it in the msg variable using the command:OpenProgrammingAnswers asked 2 years ago • JavaScript Essentials 1We can replace the declaration let x = 3e-3; with:OpenProgrammingAnswers asked 2 years ago • JavaScript Essentials 1Placing a debugger; statement in the program code will:OpenProgrammingAnswers asked 2 years ago • JavaScript Essentials 1Examine the following code: let a = (n) => { return n > 2 ? n * a(n – 1) : 2 } a(6); What will appear on the console as a result?OpenProgrammingAnswers asked 2 years ago • JavaScript Essentials 1