# # `collapse()`

The collapse method collapses a collection of arrays into a single, flat collection:

    const collection = collect([[1], [{}, 5, {}], ["xoxo"]]);

    const collapsed = collection.collapse();

    collapsed.all();

    //=> [1, {}, 5, {}, 'xoxo']

    const collection = collect([[1, 2, 3], [4, 5, 6], [7, 8, 9]]);

    const collapsed = collection.collapse();

    collapsed.all();

    //=> [1, 2, 3, 4, 5, 6, 7, 8, 9]

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