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Start your free trialThomas Katalenas
11,033 Pointsoctals
https://en.wikipedia.org/wiki/Octal
Binary to octal conversion
The process is the reverse of the previous algorithm. The binary digits are grouped by threes, starting from the least significant bit and proceeding to the left and to the right. Add leading 0s (or trailing zeros to the right of decimal point) to fill out the last group of three if necessary. Then replace each trio with the equivalent octal digit.
For instance, convert binary 1010111100 to octal:
001 010 111 100
1 2 7 4
Therefore, 10101111002 = 12748.
Convert binary 11100.01001 to octal:
011 100 . 010 010
3 4 . 2 2
Therefore, 11100.010012 = 34.228.
Binary octal looks alot like cellular automata!!!!
http://es6-features.org/#BinaryOctalLiteral
ECMA 6 0b111110111 === 503 0o767 === 503
ECMA 5 parseInt("111110111", 2) === 503; parseInt("767", 8) === 503; 0767 === 503; // only in non-strict, backward compatibility mode
https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Lexical_grammar#Numeric_literals var n = 0O755; // 493 var m = 0o644; // 420
// Also possible with just a leading zero (see note about decimals above) 0755 0644
5 Answers
Steven Parker
231,236 PointsI thought your examples were wrong until I realized the last digit was supposed to be a subscript!
But anyway .. did you have a question that relates to the quiz you linked to?
Thomas Katalenas
11,033 PointsThomas Katalenas
11,033 Pointsyou know what is funny "\u{20BB7}".length === 2 weird heh?
if you copy and paste the "\u{20BB7}" it will make the the blog time out and crash? hahheh
Thomas Katalenas
11,033 Pointsare you a 0 or 1 in the workspace first digit/ im https://teamtreehouse.com/workspaces/15210282#
Thomas Katalenas
11,033 Pointsare you a 0 or 1 in the workspace first digit/ im https://teamtreehouse.com/workspaces/15210282#