First-grade Free JavaScript-Developer-I Download - Win Your Salesforce Certificate with Top Score

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Salesforce Certified JavaScript Developer I Exam Sample Questions (Q208-Q213):

NEW QUESTION # 208
Which statement phrases successfully?

A. JSON.parse ( " foo " );
B. JSON.parse( " ' foo ' " );
C. JSON.parse ( ' foo ' );
D. JSON.parse(' " foo " ');

Answer: D

NEW QUESTION # 209
is below:
<input type="file" onchange="previewFile()">
<img src="" height="200"alt="Image Preview..."/>
The JavaScript portion is:
01 functionpreviewFile(){
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 04 and 08, which code allows the user to select an image from their local computer , and to display the image in the browser?

A. 04 const reader = new File();08 if (file) reader.readAsDataURL(file);
B. 04 const reader = new FileReader();08if (file) URL.createObjectURL(file);
C. 04 const reader = new FileReader();08 if (file) reader.readAsDataURL(file);
D. 04 const reader = new File();08 if (file) URL.createObjectURL(file);

Answer: C

NEW QUESTION # 210
A test has a dependency on database. query. During the test, the dependency is replaced with an object called database with the method, Calculator query, that returns an array. The developer does not need to verify how many times the method has been called.
Which two test approaches describe the requirement?
Choose 2 answers

A. White box
B. Substitution
C. Black box
D. Stubbing

Answer: A,B

NEW QUESTION # 211
A developer is leading the creation of a new browser application that will serve a single page application. The team wants to use a new web framework Minimalsit.js. The Lead developer wants to advocate for a more seasoned web framework that already has a community around it.
Which two frameworks should the lead developer advocate for?
Choose 2 answers

A. Vue
B. Koa
C. Angular
D. Express

Answer: C,D

NEW QUESTION # 212
developer uses the code below to format a date.

After executing, what is the value of formattedDate?

A. June 10, 2020
B. May 10, 2020
C. October 05, 2020
D. November 05, 2020

Answer: A

NEW QUESTION # 213
......

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First-grade Free JavaScript-Developer-I Download - Win Your Salesforce Certificate with Top Score

Valid Free JavaScript-Developer-I Download - Pass JavaScript-Developer-I in One Time - Latest New JavaScript-Developer-I Braindumps Questions

Salesforce Certified JavaScript Developer I Exam Sample Questions (Q208-Q213):

Quiz 2025 Salesforce JavaScript-Developer-I – Reliable Free Download

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