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copied!<p>This seems to do the trick:</p> <pre><code>String.prototype.format = -> args = arguments return this.replace /{(\d+)}/g, (match, number) -> return if typeof args[number] isnt 'undefined' then args[number] else match </code></pre> <p>Translated using some <a href="https://stackoverflow.com/questions/610406/javascript-equivalent-to-printf-string-format">javascript from fearphage</a></p> <p>Which can then be used like this:</p> <pre><code>fmt = "<p>{0} {1} (<a href='mailto:{2}'>{2}</a>)</p>" mystring = fmt.format "Fred", "Flinstone", "fflinstone@bedrock.gov" </code></pre> <p>mystring would then be:</p> <pre><code><p>Fred Flinstone (<a href='mailto:fflinstone@bedrock.gov'>fflinstone@bedrock.gov</a>)</p> </code></pre> <p>Using the #{var} approach (while perfect for example given) doesn't work with a string that needs to be recycled several times. In a looping situation for example:</p> <pre><code> HTML_header = fs.readFileSync('includes/notify/header.html').toString() HTML_managerOpen = fs.readFileSync('includes/notify/managerOpen.html').toString() HTML_student = fs.readFileSync('includes/notify/student.html').toString() HTML_managerClose = fs.readFileSync('includes/notify/managerClose.html').toString() HTML_footer = fs.readFileSync('includes/notify/footer.html').toString() HTML_final = HTML_header getter2 = (r, callback) -> HTML_final += HTML_managerOpen.format r.EMAIL, r.FNAME, r.LNAME, r.STUDENTS.length, r.PHONE, r.MEMAIL, r.MFNAME, r.MLNAME async.forEachSeries r.STUDENTS, getter3, (err) -> HTML_final += HTML_managerClose callback null getter3 = (r, callback) -> HTML_final += HTML_student.format r.EMAIL, r.FNAME, r.LNAME, r.PHONE, r.DESCRIPTION, r.ENROLLED, "", "", "", "", "", "", r.CERTEXAMSCORE, r.COIKEY callback null async.forEachSeries results, getter2, (err) -> cback null, HTML_final + HTML_footer </code></pre>

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