Creating multiline strings in JavaScript

Update:

ECMAScript 6 (ES6) introduces a new type of literal, namely template literals. They have many features, variable interpolation among others, but most importantly for this question, they can be multiline.

A template literal is delimited by backticks:

var html = `
  <div>
    <span>Some HTML here</span>
  </div>
`;

(Note: I’m not advocating to use HTML in strings)

Browser support is OK, but you can use transpilers to be more compatible.

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Original ES5 answer:

Javascript doesn’t have a here-document syntax. You can escape the literal newline, however, which comes close:

"foo \
bar"