I know it's a hack, but I always wrote multi-line strings as a function with a comment. Super simple case: var multiline = (function() {/* I am a multi- lin

I know it's a hack, but I always wrote multi-line strings as a function with a comment. Super simple case: var multiline = (function() {/* I am a multi- line string. */}).toString().slice(16, -4); Couple this with a proper parser for the syntax and a template library and it has served me well enough.