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Upon passing the Salesforce JavaScript-Developer-I Exam, candidates will receive a Salesforce Certified JavaScript Developer I certification. Salesforce Certified JavaScript Developer (JS-Dev-101) certification serves as a validation of the candidate's expertise in developing custom applications on the Salesforce platform using JavaScript. It also demonstrates their ability to implement best practices and design patterns in JavaScript development. Salesforce Certified JavaScript Developer (JS-Dev-101) certification is recognized globally and can lead to new career opportunities in Salesforce development.

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Salesforce JavaScript-Developer-I Certification Exam covers a wide range of topics related to JavaScript development in Salesforce. These topics include but are not limited to: Apex, Visualforce, Lightning Components, Aura Components, JavaScript, and HTML/CSS. JavaScript-Developer-I Exam also assesses the candidate's ability to design and implement solutions using best practices and Salesforce development standards.

Salesforce Certified JavaScript Developer (JS-Dev-101) Sample Questions (Q132-Q137):

NEW QUESTION # 132
Which three actions can be using the JavaScript browser console?
Choose 3 answers:

A. Display a report showing the performance of a page.
B. view , change, and debug the JavaScript code of the page.
C. View and change DOM the page.
D. Run code that is not related to page.
E. View and change security cookies.

Answer: B,C,D

NEW QUESTION # 133
A developer is required to write a function that calculates the sum of elements in an array but is getting undefined every time the code is executed. The developer needs to find what is missing in the code below.
01 const sumFunction = arr = > {
02 return arr.reduce((result, current) = > {
03 //
04 result += current;
05 //
06 }, 10);
07 };
Which line replacement makes the code work as expected?

A. 02 arr.map((result, current) = > {
B. 03 if(arr.length == 0) { return 0; }
C. 05 return result;
D. 04 result = result + current;

Answer: C

Explanation:
* In a reduce callback, you must return the new accumulator value.
* Currently:
(result, current) = > {
result += current;
// no return
}
This returns undefined each time, so the accumulator becomes undefined on the next iteration, leading to incorrect results.
Fix by returning result:
const sumFunction = arr = > {
return arr.reduce((result, current) = > {
result += current;
return result; // line 05
}, 10);
};
Option D correctly adds the return.
Options A/B/C do not fix the missing return in the reducer and therefore do not resolve the core issue.

NEW QUESTION # 134
The developer has a function that prints "Hello" to an input name. To test this,thedeveloper created a function that returns "World". However the following snippet does not print " Hello World".

What can the developer do to change the code to print "Hello World" ?

A. Change line 9 to sayHello(world) ();
B. Change line 7 to ) () ;
C. Change line 5 to function world ( ) {
D. Change line 2 to console.log('Hello' ,name() );

Answer: D

NEW QUESTION # 135
A developer is required to write a function that calculates the sum of elements in an array but is getting undefinedevery time the code is executed. The developer needs to find what is missing in the code below.
Const sumFunction = arr => {
Return arr.reduce((result, current) => {
//
Result += current;
//
), 10);
);
Which option makes the code work as expected?

A. Replace line 05 with return result;
B. Replace line 03 with if(arr.length == 0 ) ( return 0; )
C. Replace line 04 with result = result +current;
D. Replace line02 with return arr.map(( result, current) => (

Answer: A

NEW QUESTION # 136
Refer to the code below:
let productSKU = '8675309,;
A developer has a requirement to generate SKU numbers that are always 10 characters log, starting with 'sku', and padded with zeros.
Which statement assigned the value skuooooooooo86675309?

A. productSKU = productSKU. PadEnd (16, '0' padstart ('sku') ;
B. productSKU = productSKU. Padstart (19, '0' padstart ('sku') ;
C. productSKU = productSKU. Padstart (16, '0' padstart (19, 'sku') ;
D. productSKU = productSKU. PadEnd (16, '0' padstart (19, 'sku') ;

Answer: C

NEW QUESTION # 137
......

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