JavaScript Developer I V1

At Universal Containers, every team has its own way of copying JavaScript objects. The code snippet shows an Implementation from one team: What is the output of the code execution?A . Hello John Doe B. Hello Dan C. Hello Dan Doe D. SyntaxError: Unexpected token in JSONView AnswerAnswer: D

Refer to the code declarations below: Which three expressions return the string JavaScript? Choose 3 answersA . Str1.join (str2); B. Str1.concat (str2); C. Concat (str1, str2); D. $(str1) $ (str2} ‘; E. Str1 + str2;View AnswerAnswer: B,D,E

Which two code snippets show working examples of a recursive function? Choose 2 answersA . Let countingDown = function(startNumber) { If ( startNumber >0) { console.log(startNumber) ; return countingDown(startNUmber); } else { return startNumber; }}; B. Function factorial ( numVar ) { If (numVar < 0) return; If ( numVar...

A developer receives a comment from the Tech Lead that the code given below has error: const monthName = ‘July’; const year = 2019; if(year === 2019) { monthName = ‘June’; } Which line edit should be made to make this code run?A . 01 let monthName =’July’; B. 02...

A developer creates a generic function to log custom messages in the console. To do this, the function below is implemented. 01 function logStatus(status){ 02 console./*Answer goes here*/{‘Item status is: %s’, status}; 03 } Which three console logging methods allow the use of string substitution in line 02?A . Assert...

is below: <input type=”file” onchange=”previewFile()”> <img src=”” height=”200” alt=”Image Preview…”/> The JavaScript portion is: 01 function previewFile(){ 02 const preview = document.querySelector(‘img’); 03 const file = document.querySelector(‘input[type=file]’).files[0]; 04 //line 4 code 05 reader.addEventListener(“load”, () => { 06 preview.src = reader.result; 07 },false); 08 //line 8 code 09 } In lines...

A developer wants to iterate through an array of objects and count the objects and count the objects whose property value, name, starts with the letter N. Const arrObj = [{“name” : “Zach”}, {“name” : “Kate”},{“name” : “Alise”},{“name” : “Bob”},{“name” : “Natham”},{“name” : “nathaniel”} Refer to the code snippet below:...

Refer to the following code: Let obj ={ Foo: 1, Bar: 2 } Let output =[], for(let something in obj{ output.push(something); } console.log(output); What is the output line 11?A . [1,2] B. [“bar”,”foo”] C. [“foo”,”bar”] D. [“foo:1”,”bar:2”]View AnswerAnswer: C

bar, awesome is a popular JavaScript module. the versions publish to npm are: Teams at Universal Containers use this module in a number of projects. A particular project has the package, json definition below. A developer runs this command: npm install. Which version of bar .awesome is installed?A . 1.3.1...

The developer wants to test the array shown: const arr = Array(5).fill(0) Which two tests are the most accurate for this array? Choose 2 answers:A . console.assert( arr.length === 5 ); B. arr.forEach(elem => console.assert(elem === 0)) ; C. console.assert(arr[0] === 0 && arr[ arr.length] === 0); D. console.assert (arr.length...