FRENQUENT JAVASCRIPT-DEVELOPER-I UPDATE, JAVASCRIPT-DEVELOPER-I BRAIN DUMP FREE

Frenquent JavaScript-Developer-I Update, JavaScript-Developer-I Brain Dump Free

Frenquent JavaScript-Developer-I Update, JavaScript-Developer-I Brain Dump Free

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Salesforce Certified JavaScript Developer I Exam Sample Questions (Q40-Q45):

NEW QUESTION # 40
Given the HTML below:

Which statement adds the priority-account CSS class to the Universal Containers row?

  • A. document. querySelectorAll('#row-uc') -classList.add("priority-accour');
  • B. document. querySelector (#row-uc'). classes-push('priority-account');
  • C. document. queryselector('#row-uc').ClassList.add('priority-account');
  • D. document. getElementByid('row-uc').addClass('priority-account*);

Answer: C


NEW QUESTION # 41
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[0] === 0 && arr[ arr.length] === 0);
  • B. console.assert (arr.length >0);
  • C. console.assert( arr.length === 5 );
  • D. arr.forEach(elem => console.assert(elem === 0)) ;

Answer: C,D


NEW QUESTION # 42
Refer to the code below:
Const searchTest = 'Yay! Salesforce is amazing!" ;
Let result1 = searchText.search(/sales/i);
Let result 21 = searchText.search(/sales/i);
console.log(result1);
console.log(result2);
After running this code, which result is displayed on the console?

  • A. > 5 >undefined
  • B. > 5 > -1
  • C. > 5 > 0
  • D. > true > false

Answer: A

Explanation:


NEW QUESTION # 43
A developer wants to define a function log to be used a few times on a single-file JavaScript script.
01 // Line 1 replacement
02 console.log('"LOG:', logInput);
03 }
Which two options can correctly replace line 01 and declare the function for use?
Choose 2 answers

  • A. const log = (logInput) => {
  • B. const log(loginInput) {
  • C. function log = (logInput) {
  • D. function leg(logInput) {

Answer: A,D


NEW QUESTION # 44
The developer wants to test the array shown:
Const arr = Array (5) . fill (0);
Which two test are the most accurate for this array? Choose 2 answers

  • A. Console. Assert (arr. Length > 0) ;
  • B. Console,assert(arr.length === 5) ;
  • C. Arr. forEach (elem => console .assert (elem === 0) );
  • D. Console,assert(arr(0) === 0 $$ arr (arr .longth ) === 0) ;

Answer: C


NEW QUESTION # 45
......

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