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yxy/flatten.js

Last active May 13, 2016 09:01
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flatten array snippet
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flatten.js
flatten = function (a, b) {
if (!Array.isArray(a)) {
a = [a];
}
return a.concat(b);
}
// usage
var aa = [[1], [2, 3], [4, 5]];
aa.reduce(flatten);
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