A port of John Resig's Javascript Diff Algorithm posted here: http://ejohn.org/projects/javascript-diff-algorithm
$ [sudo] npm install node-diffThis module can be used to generate diff markup for two strings.
var vows = require('vows')
, diff = require('../diff')
, assert = require('assert');
vows.describe('Diff Tests').addBatch({
'see that it works': {
topic: function() {
return diff(
'The red brown fox jumped over the rolling log.',
'The brown spotted fox leaped over the rolling log'
);
},
'as expected': function(topic) {
assert.equal(topic, ' The <del>red </del> brown <ins>spotted </ins> fox <del>jumped </del><ins>leaped </ins> over the rolling <del>log.</del><ins>log</ins>');
}
}
}).export(module);