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Traction Trivia (JavaScript) Flashcards | StudBud
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Traction Trivia (JavaScript)
Traction Trivia (JavaScript)
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Ten questions about Traction Business, software, and general programming concepts.
Flashcards
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Questions
10
Answers
1
What does the following evaluate to in JavaScript? undefined ?? null ?? 0 ?? 1
0
null
1
undefined
2
What does ACID stand for in the context of databases?
Availability, Consistency, Isolation, Durability
Atomicity, Consistency, Isolation, Durability
Available, Clustered, and Indexed Database
Atomicity, Consistency, Indexed, Durability
3
What is the output in JavaScript? console.log(0 == 0 == 0)
1
false
SyntaxError: Unexpected token '='
true
4
Traction has 3 tiers of software for purchase, and the middle tier is most popular. What's the name of the middle tier?
Deluxe
Basic
Plus
Pro
5
What does the following output?
[1, 2, 3, 4]
1
[2, 3, 4]
2
6
What does ("b" + "a" + + "a" + "a").toLowerCase() output in JavaScript?
"ba0a"
"baaa"
"banana"
"BAAA"
7
What does [2] == [2] output in JavaScript?
True
False
8
Which of the following JavaScript array methods mutates the array?
splice()
slice()
reduceRight()
map()
9
What are the "em" units in CSS relative to?
The font size of the root element
The width of the letter in the current font-family
The font size of the element's parent
The width of the viewport
10
When will the mystery function run? setTimeout(mystery, 0)
After the next user-triggered event
Immediately
Never
After currently executing code completes
