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Total 157 questions Full Exam Access

Question 1

Which option is a core Node,js module?

Path

Ios

Memory

locate

Question 2

Refer to the code below? LetsearchString = ‘ look for this ’;
Which two options remove the whitespace from the beginning of searchString? Choose 2 answers

searchString.trimEnd();

searchString.trimStart();

trimStart(searchString);

searchString.replace(/*\s\s*/, ‘’);

Question 3

Refer to the code below:
Let inArray =[ [ 1, 2 ] , [ 3, 4, 5 ] ];
Which two statements result in the array [1, 2, 3, 4, 5] ?
Choose 2 answers

[ ]. Concat.apply ([ ], inArray);

[ ]. Concat (... inArray);

[ ]. concat.apply(inArray, [ ]);

[ ]. concat ( [ ….inArray ] );

Question 4

Refer to the code below:
JavaScript-Developer-I dumps exhibit

Which code executes sayHello once, two minutes from now?

setTimeout(sayHello, 12000);

setInterval(sayHello, 12000);

setTimeout(sayHello(), 12000);

delay(sayHello, 12000);

Question 5

Refer to the code below:
new Promise((resolve, reject) => { const fraction = Math.random();
if( fraction >0.5) reject("fraction > 0.5, " + fraction); resolve(fraction);
})
.then(() =>console.log("resolved"))
.catch((error) => console.error(error))
.finally(() => console.log(" when am I called?"));
JavaScript-Developer-I dumps exhibit

When does Promise.finally on line 08 get called?

When rejected

When resolved and settled

WHen resolved

When resolved or rejected

Question 6

Refer to the code below:
JavaScript-Developer-I dumps exhibit

What value can a developer expect when referencing o.js.secondCity?

Undefined

‘ new york ’

‘ New York ’

An error

Question 7

Why would a developer specify a package.jason as a developed forge instead of a dependency ?

It is required by the application in production.

It is only needed for local development and testing.

Other requiredpackages depend on it for development.

It should be bundled when the package is published.

Question 8

GIven a value, which three options can a developer use to detect if the value is NaN? Choose 3 answers !

value == NaN

Object.is(value, NaN)

value === Number.NaN

value ! == value

Number.isNaN(value)

Question 9

Refer to the code below: Let textValue = ’1984’;
Which code assignment shows a correct way to convert this string to an integer?

let numberValue = Number(textValue);

Let numberValue = (Number)textValue;

Let numberValue = textValue.toInteger();

Let numberValue = Integer(textValue);

Question 10

Refer to the code below:
JavaScript-Developer-I dumps exhibit

Line 05 causes an error.
What are the values of greeting and salutation once code completes?

Greeting is Hello and salutation is Hello, Hello.

Greeting is Goodbye and salutation is Hello, Hello.

Greeting is Goodbye and salutation is I say Hello.

Greeting is Hello and salutation is I say hello.

Question 11

Refer to the code:
JavaScript-Developer-I dumps exhibit

Given the code above, which three properties are set pet1? Choose 3answers:

Name

canTalk

Type

Owner

Size

Question 12

Given HTML below:
JavaScript-Developer-I dumps exhibit

Which statement adds the priority = account CSS class to the universal COntainers row ?

Document.querySelector(‘#row-uc’).classes.push(‘priority-account’);

Document .queryElementById(‘row-uc’).addclass(‘priority-account’);

Document .querySelector(‘#row-uc’).classList.add(‘priority-account’);

Document .querySelectorALL(‘#row-uc’).classList.add(‘priority-account’);

Question 13

A developer uses a parsed JSON string to work with userinformation as in the block below:
01 const userInformation ={
02 “ id ” : “user-01”,
3 “email” : “user01@universalcontainers.demo”,
4 “age” : 25
Which two options access the email attribute in the object? Choose 2 answers

userInformation(“email”)

userInformation.get(“email”)

userInformation.email

userInformation(email)

Question 14

Given the following code:
JavaScript-Developer-I dumps exhibit

is the output of line 02?

''x''

''null'''

''object''

''undefined''

Question 15

Which statement parses successfully?

JSO

parse (""foo"');

JSON.parse (""foo'");

JSON.parse ("foo");

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Total 157 questions Full Exam Access