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udia assets node_modules mout array union.js
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assets/node_modules/mout/array/union.js

var unique = require('./unique');
var append = require('./append');
/**
* Concat multiple arrays and remove duplicates
*/
function union(arrs) {
var results = [];
var i = -1, len = arguments.length;
while (++i < len) {
append(results, arguments[i]);
}
return unique(results);
}
module.exports = union;