heredoc

multiline strings for javascript

heredoc

multiline strings for javascript

this technique takes advantage of Function.prototype.toString()

    var heredoc = require('heredoc')
    var str = heredoc(function () {/*
    within this comment block,
    any text
    will
      be
        treated
          as
      pre-formatted
        multiline text
    (kinda like html <pre>)
    */})
    console.log(str)

You can also strip leading indentation:

var text = heredoc.strip(function() {/*
      <body>
        <p>indented strings are fine.</p>
        <p>the preceding spaces will be shrinked.</p>
      </body>
    */})

will result in:

<body>
  <p>indented strings are fine.</p>
  <p>the preceding spaces will be shrinked.</p>
</body>
 

heredoc defines itself as an AMD module for use in AMD environments.

$ npm install heredoc

Install all dependencies:

$ npm install
$ npm test        # run tests in node
$ npm run test-browser       # start a server to run tests in browser
$ open http://localhost:5000/test/runner.html

thanks to @izs - I first saw this technique when reading through npm source. I find it to be much neater than lots of manual string concatenation.

ISC