arraydiff-async/example/example.js

Diff two arrays, finding inserts, removes, and moves, using an asynchronous equality function

var arrayDiff = require('../index');

var before = [0, 1, 2, 3];
var after = ['1', '2', 4, 5, 0];

// Compares with `===` by default
var diff = arrayDiff(before, after, null, function (diff) {

    console.log('\nStandard diff:');
    for (var i = 0; i < diff.length; i++) {
        var item = diff[i];
        console.log(item.type, item);
    }
});

// A custom equality method is optional
var diff = arrayDiff(before, after, function(a, b, callback) {
    return callback(a == b);
}, function (diff) {

    console.log('\nFuzzy equality diff:');
    for (var i = 0; i < diff.length; i++) {
        var item = diff[i];
        console.log(item.type, item);
    }
});