danvk/dygraphs — comment on commit 49302d658811c6d883924ef926bcd8f2e21bc931
File:  line 0
By klausw-g:

Hm - there seems to be disagreement if backslash-newline continuations are legal Javascript: http://kazoolist.blogspot.com/2008/06/multi-line-strings-in-javascript.html

According to that article it's illegal in ECMAScript but supported by various browsers, though the semantics appear unclear, such as if the resulting string will contain extra whitespace.

If you strongly want line continuations, would you consider using merged string literals instead which is less ambiguous?

"a long" +
" text line"