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A developer needs to test this function:
01const sum3 = (arr) => (
02if (!arr.length) return 0,
03if (arr.length === 1) return arr[0],
04if (arr.length === 2) return arr[0]+ arr[1],
05 return arr[0] + arr[1] + arr[2],
06 );
Which two assert statements are valid tests for the function?
Choose 2 answers
A. console.assert(sum3(1, '2')) == 12);
B. console.assert(sum3(-3, 2 )) == -1);
C. console.assert(sum3('hello', 2, 3, 4)) === NaN);
D. console.assert(sum3(0)) == 0);
Answer: A,B
NEW QUESTION # 120
Refer the code below.
x=3.14;
function myfunction() {
"use strict";
y=x;
}
z=x;
myFunction(); Answer:
Explanation:
See the Answer below in explanation
NEW QUESTION # 121
A test searches for:
<button class="blue">Checkout</button>
But the actual HTML is:
<button>Checkout</button>
The test fails because it expects a class that no longer exists.
What type of test outcome is this?
A. False positive
B. True negative
C. False negative
D. True positive
Answer: C
Explanation:
________________________________________
Comprehensive and Detailed Explanation From Exact Extract JavaScript Knowledge Definitions:
False negative ¡ú The test reports a failure even though the feature actually works.
False positive ¡ú The test reports success when it should not.
True positive ¡ú Correctly identifies something is working.
True negative ¡ú Correctly identifies something is not working.
In this scenario:
The checkout button does exist, so the feature works.
The test fails incorrectly, because it is checking for the wrong selector.
That is the definition of a false negative.
________________________________________
JavaScript Knowledge Reference (text-only)
Test outcome classification: false negative = feature works but test fails.
NEW QUESTION # 122
Refer to the following object.
How can a developer access the fullName property for dog?
A. Dog, get,fullName
B. Dog.fullName
C. Dog.fullName ( )
D. Dog, function, fullName
Answer: B
NEW QUESTION # 123
bar, awesome is a popular JavaScript module. the versions publish to npm are:
Teams at Universal Containers use this module in a number of projects. A particular project has thepackage, json definition below.
A developer runs this command: npm install. Which version of bar .awesome is installed?
A. 1.4.0
B. 1.3.5
C. 1.3.1
D. The command fails, because version 130 is not found
Answer: B
NEW QUESTION # 124
......
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