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Salesforce Certified JavaScript Developer I Exam Sample Questions (Q88-Q93):

NEW QUESTION # 88
Given a value, which three options can a developer use to detect of the value is NaN?
Choose 3 answers

A. Number , isNaN(value)
B. Object , is ( value, NaN)
C. Value I== value
D. Value == Number, NaN
E. Value == NaN

Answer: A,B,E

NEW QUESTION # 89
Which option is a core Node;js module?

A. Ios
B. Path
C. locale
D. Memory

Answer: A,B

NEW QUESTION # 90
A Developer wrote the following code to test a sum3 function that takes in an array of
numbers and returns the sum of the first three number in the array, The test passes:
Let res = sum2([1, 2, 3 ]) ;
console.assert(res === 6 );
Res = sum3([ 1, 2, 3, 4]);
console.assert(res=== 6);
A different developer made changes to the behavior of sum3 to instead sum all of the numbers
present in the array. The test passes:
Which two results occur when running the test on the updated sum3 function ?
Choose 2 answers

A. The line 02 assertion passes.
B. The line 02 assertion fails
C. The line 05 assertion fails.
D. The line 05 assertion passes.

Answer: A,C

NEW QUESTION # 91
Given the code below:

Which method can be used to provide a visual representation of the list of users and to allow sorting by the name or email attribute?

A. console.groupCol lapsed (usersList) ;
B. console.table(usersList) ;
C. console.info(usersList) ;
D. console.group(usersList) ;

Answer: D

NEW QUESTION # 92
Given the following code, what is the value of x?
let x = '15' + (10 * 2);

A. 0
B. 1
C. 2
D. 3

Answer: D

NEW QUESTION # 93
......

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