Octal escape sequences misinformation #17

eligrey opened this Issue Jan 15, 2011 · 2 comments


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eligrey commented Jan 15, 2011

The statement, "Also, weren't octals removed for escape sequences in ES5?" is wrong. Octal escape sequences were never removed from regexp syntax.


csnover commented Jan 17, 2011

“ECMAScript 3 removed octal character references from regular expression syntax, although \0 was kept as a convenient exception that allows easily matching a NUL character. However, browsers have generally kept full octal support around for backward compatibility.” http://blog.stevenlevithan.com/archives/fixing-javascript-regexp


Garbee commented Mar 5, 2013

Annotated ECMAScript 5.1 does show that octal sequences have been removed. So all is good! 😄

Garbee closed this Mar 5, 2013

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