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var arr1 = [[1, "Hair Pin"], [21, "Bowling Ball"], [2, "Dirty Sock"], [5, "Microphone"]];
arr1.sort(function (a, b) {
return a[1].localeCompare(b[1]);
});
document.write('<pre>' + JSON.stringify(arr1, 0, 4) + '</pre>');
Run code snippet
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var arr = [[12, 'AAA'], [12, 'BBB'], [12, 'CCC'],[28, 'DDD'], [18, 'CCC'],[12, 'DDD'],[18, 'CCC'],[28, 'DDD'],[28, 'DDD'],[58, 'BBB'],[68, 'BBB'],[78, 'BBB']];
arr.sort(function(a,b) {
return a[0]-b[0]
});