What does HTML stand for?
AnswerHyperText Markup Language
HTML is the markup language that structures content on web pages.
Coding · Facts & stats
Coder facts & stats
7 fact-checked facts about coding, each with the reason behind it. 5 more are in today's round and join this page after it closes.
The basics
What does CSS stand for?
AnswerCascading Style Sheets
CSS controls the colors, fonts and layout of web pages.
Going deeper
The Boolean data type is named after which mathematician?
AnswerGeorge Boole
George Boole developed the algebra of true and false values in the 1800s.
What is the hexadecimal value FF in decimal?
Answer255
FF is 15 × 16 + 15 = 255.
What does SQL stand for?
AnswerStructured Query Language
SQL is used to query and manage data in relational databases.
Expert level
What is the time complexity of binary search on a sorted list?
AnswerO(log n)
Binary search halves the search range at each step, so steps grow logarithmically.
How many characters does standard 7-bit ASCII define?
Answer128
7 bits give 2⁷ = 128 codes, covering letters, digits, punctuation and control codes.
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