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install generate-function\n```\n\n[![build status](http://img.shields.io/travis/mafintosh/generate-function.svg?style=flat)](http://travis-ci.org/mafintosh/generate-function)\n\n## Disclamer\n\nWriting code that generates code is hard.\nYou should only use this if you really, really, really need this for performance reasons (like schema validators / parsers etc).\n\n## Usage\n\n``` js\nvar genfun = require('generate-function')\n\nvar addNumber = function(val) {\n  var fn = genfun()\n    ('function add(n) {')\n      ('return n + %d', val) // supports format strings to insert values\n    ('}')\n\n  return fn.toFunction() // will compile the function\n}\n\nvar add2 = addNumber(2)\n\nconsole.log('1+2=', add2(1))\nconsole.log(add2.toString()) // prints the generated function\n```\n\nIf you need to close over variables in your generated function pass them to `toFunction(scope)`\n\n``` js\nvar multiply = function(a, b) {\n  return a * b\n}\n\nvar addAndMultiplyNumber = function(val) {\n  var fn = genfun()\n    ('function(n) {')\n      ('if (typeof n !== \"number\") {') // ending a line with { will indent the source\n        ('throw new Error(\"argument should be a number\")')\n      ('}')\n      ('var result = multiply(%d, n+%d)', val, val)\n      ('return result')\n    ('}')\n\n  // use fn.toString() if you want to see the generated source\n\n  return fn.toFunction({\n    multiply: multiply\n  })\n}\n\nvar addAndMultiply2 = addAndMultiplyNumber(2)\n\nconsole.log('(3 + 2) * 2 =', addAndMultiply2(3))\n```\n\n## Related\n\nSee [generate-object-property](https://github.com/mafintosh/generate-object-property) if you need to safely generate code that\ncan be used to reference an object property\n\n## License\n\nMIT","maintainers":[{"name":"mafintosh","email":"mathiasbuus@gmail.com"}],"time":{"modified":"2014-08-21T16:53:53.661Z","created":"2014-07-30T17:17:07.759Z","0.0.0":"2014-07-30T17:17:07.759Z","1.0.0":"2014-07-30T17:25:00.747Z","1.0.1":"2014-07-30T18:22:50.528Z","1.0.2":"2014-07-30T21:39:22.512Z","1.0.3":"2014-08-01T09:04:48.912Z","1.1.0":"2014-08-01T09:50:30.055Z","2.0.0":"2014-08-21T16:53:53.661Z"},"homepage":"https://github.com/mafintosh/generate-function","keywords":["generate","code","generation","function","performance"],"repository":{"type":"git","url":"https://github.com/mafintosh/generate-function"},"author":{"name":"Mathias Buus"},"bugs":{"url":"https://github.com/mafintosh/generate-function/issues"},"license":"MIT","readmeFilename":"README.md","_attachments":{},"_etag":"\"12PLKYR2FNJXHNF7XFY76TLP0\""}