Questions Bank We have declared an array of selected month names let summer = [ “June”, “July”, “August”];. We want to change the value “July” stored in the array to the number 7:OpenProgrammingAnswers asked 2 years ago • JavaScript Essentials 1Analyze the following code: let height = 180; { let heigh = 200; height = height + 10; } console.log(height); As a result of its execution:OpenProgrammingAnswers asked 2 years ago • JavaScript Essentials 1We need to come up with a name for a variable where we will store the age of a user. All of the following variable names are formally correct, but one of them is the most readable, indicate which one:OpenProgrammingAnswers asked 2 years ago • JavaScript Essentials 1We have declared an array of animals let animals = [“dog”, “cat”, “hamster”];. Then we call the method animals.push(“canary”);. As a result, the animals array will look like this:OpenProgrammingAnswers asked 2 years ago • JavaScript Essentials 1Complex (or composite) data types:OpenProgrammingAnswers asked 2 years ago • JavaScript Essentials 1Review the following code (note the variable name): let age = 32; age = age + 1; console.log(Age); As a result of its execution, the following should appear in the console:OpenProgrammingAnswers asked 2 years ago • JavaScript Essentials 1Analyze the following code: let counter = 100; let counter = 200; counter = 300; As a result of its execution:OpenProgrammingAnswers asked 2 years ago • JavaScript Essentials 1Performing the operation: let x = 100 / 0; will result in:OpenProgrammingAnswers asked 2 years ago • JavaScript Essentials 1The msg variable contains a String type value. Information about the number of characters of this string can be obtained using:OpenProgrammingAnswers asked 2 years ago • JavaScript Essentials 1Analyze the code snippet: let summer = [“June”, “July”, “August”]; let index = summer.indexOf(“June”); The index variable will have the value:OpenProgrammingAnswers asked 2 years ago • JavaScript Essentials 1Performing the operation: let x = “Alice” + 10; will result in:OpenProgrammingAnswers asked 2 years ago • JavaScript Essentials 1Analyze the code snippet: let name; let age; { let height;// 2 {// 2 let weight;// 1// 2 console.log(name);// 1// 2 }// 2 console.log(name);// 2 } We have access to the weight variable:OpenProgrammingAnswers asked 2 years ago • JavaScript Essentials 1What tag do we use in HTML to denote the main part of the document inside which we define the page elements?OpenProgrammingAnswers asked 2 years ago • JavaScript Essentials 1The JavaScript code includes the console.log(“http://test.org”); command. Its execution will:OpenProgrammingAnswers asked 2 years ago • JavaScript Essentials 1HTML is:OpenProgrammingAnswers asked 2 years ago • JavaScript Essentials 1
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