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NEW QUESTION # 140
Refer to the code below:
```html
<html>
<body>
<div id="logo">Hello Logo!</div>
<button id="test">Click me</button>
</body>
<script>
function printMessage() {
console.log('This is a test message');
}
let el = document.getElementById('test');
el.addEventListener("click", printMessage, false);
</script>
</html>
Answer: D
NEW QUESTION # 141
A developer removes the HTML class attribute from the checkout button, so now it is simply:
<button>Checkout</button>
There is a test to verify the existence of the checkout button, however it looks for a button with class="blue". The test fails because no such button is found.
Which type of test category describes this test?
Answer: C
Explanation:
Definitions in testing context (treating "positive" as "test reports a bug/failure"):
True positive: System has a bug; test correctly fails.
False positive: System is correct; test fails (reports a bug that isn't actually a bug).
True negative: System has a bug; test correctly passes indicating "no success" in detection context (less common phrasing here).
False negative: System has a bug; test incorrectly passes (missed bug).
Here:
The real requirement, as stated, is to verify the existence of the checkout button.
The button still exists (<button>Checkout</button>), so the system behavior is correct regarding that requirement.
The test, however, is checking for an overly specific condition (class="blue"), which is not actually part of the stated requirement.
The test fails, saying there is a problem (no button with class="blue"), even though from the requirement standpoint, the checkout button is present.
So:
No real bug concerning presence of checkout button.
Test reports a failure → a false positive.
Therefore, the correct category is D, False positive.
NEW QUESTION # 142
Given the code below:
let numValue = 1982;
Which three code segments result in a correct conversion from number to string?
Answer: B,C,E
Explanation:
This is not valid JavaScript casting syntax; it is more like a C/Java-style cast.
In JavaScript, that is parsed as a grouping expression (String) and then numValue; it does not convert numValue to a string.
Thus the correct answers are:
B . String(numValue);
C . '' + numValue;
D . numValue.toString();
Relevant concepts: primitive type conversion, String() casting, .toString(), coercion via + with strings.
Explanation:
We want to convert the number 1982 to a string.
Check each option:
A . numValue.toText()
There is no standard toText() method on numbers.
This will result in TypeError: numValue.toText is not a function.
B . String(numValue);
String() as a function converts its argument to a string.
String(1982) returns "1982".
This is correct.
C . '' + numValue;
'' is a string; + with a string operand performs string concatenation.
'' + 1982 → "1982".
This is a common shorthand for number-to-string conversion.
D . numValue.toString();
Number.prototype.toString() converts the number to its string representation.
1982..toString() or (1982).toString() returns "1982".
For the variable, numValue.toString() is valid: "1982".
NEW QUESTION # 143
A test has a dependency on database.query. During the test the dependency is replaced with an object called database with the method, query, that returns an array. The developer needs to verify how many times the method was called and the arguments used each time.
Which two test approaches describe the requirement?
Choose 2 answers
Answer: A,B
NEW QUESTION # 144
Code:
01 const sayHello = (name) => {
02 console.log('Hello ', name);
03 };
04
05 const world = () => {
06 return 'World';
07 };
08
09 sayHello(world);
This does not print "Hello World".
What change is needed?
Answer: B
Explanation:
Currently:
sayHello expects a value name and prints it.
world is a function that returns 'World'.
sayHello(world); passes the function object itself, not the result of calling it.
So name inside sayHello is a function, not the string "World".
To keep the call sayHello(world) yet get "World", sayHello must call the function parameter:
const sayHello = (name) => {
console.log('Hello', name());
};
Now:
sayHello(world) passes the function.
Inside sayHello, name() calls world(), which returns "World".
The console logs "Hello World".
Why the others are wrong:
B: Changing line 7 to }(); would attempt to IIFE the function definition and break the declaration.
C: sayHello(world)() would try to call the return value of sayHello, which is undefined, causing an error.
D: Changing world to a function declaration does not change the fact that it is passed as a function reference; sayHello still prints the function object, not 'World'.
NEW QUESTION # 145
......
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