Init

Nodejs/node_modules/es5-ext/array/#/diff.js

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+"use strict";
+
+var value    = require("../../object/valid-value")
+  , contains = require("./contains")
+  , filter   = Array.prototype.filter;
+
+module.exports = function (other) {
+	value(this);
+	value(other);
+	return filter.call(this, function (item) { return !contains.call(other, item); });
+};