JavaScript Developer I V1

Refer to the code below: console.log(‘’start); Promise.resolve(‘Success’). then(function(value) { console.log(‘Success’); }); console.log(‘End’); What is the output after the code executes successfully?A . End Start Success B. Start Success End C. Start End Success D. Success Start EndView AnswerAnswer: C

Given the following code: Let x =null; console.log(typeof x); What is the output of the line 02?A . “Null” B. “X” C. “Object” D. “undefined”View AnswerAnswer: C

A developer has the following array of hourly wages: Let arr = (8, 5, 9, 75, 11, 25, 7, 75, 13, 25); For workers making less than $10 an hour rate should be multiple by 1.25 and returned in a new array. How should the developer implement the request?A ....

CORRECT TEXT Given the requirement to refactor the code above to JavaScript class format, which class definition is correct? A) B) C) D) A . Option A B. Option B C. Option C D. Option DView AnswerAnswer: A

Refer to the code below: Let textValue = ’1984’; Which code assignment shows a correct way to convert this string to an integer?A . let numberValue = Number(textValue); B. Let numberValue = (Number)textValue; C. Let numberValue = textValue.toInteger(); D. Let numberValue = Integer(textValue);View AnswerAnswer: A

Cloud Kicks has a class to represent items for sale in an online store, as shown below: Class Item{ constructor (name, price){ this.name = name; this.price = price; } formattedPrice(){ return ‘s’ + String(this.price);}} A new business requirement comes in that requests a ClothingItem class that should have all of...

Which statement accurately describes the behaviour of the async/ await keyworks?A . The associated class contains some asynchronous functions. B. The associated function will always return a promise C. The associated function can only be called via asynchronous methods D. The associated sometimes returns a promise.View AnswerAnswer: B

Refer to the code below: After running this code, which result is displayed on the console?A . > true > false B. > 5 >undefined B. > 5 > -1 C. > 5 > 0View AnswerAnswer: B

Refer to the code below: function changeValue(param) { Param =5; } Let a =10; Let b =5; changeValue(b); Const result = a+ “ - ”+ b; What is the value of result when code executes?A . 10 -10 B. 5 -5 C. 5 - 10 D. 10 - 5View AnswerAnswer:...

A developer wrote the following code: 01 let X = object.value; 02 03 try { 4 handleObjectValue(X); 5 } catch (error) { 6 handleError(error); 7 } The developer has a getNextValue function to execute after handleObjectValue(), but does not want to execute getNextValue() if an error occurs. How can the...