note choroba As usual in functional programming, read from right to left (or bottom to top): <p>The [doc://map] changes the sentences to arrays of arrays. Each such an array has two elements: the word to sort on and the original sentence. <p> [doc://sort] just sorts the arrays according to their first element, i.e. the sort word. <p> [doc://map] transforms the arrays back to sentences. <!-- Node text goes above. Div tags should contain sig only --> <div class="pmsig"><div class="pmsig-832495"> &#1604;&#1405;&#4285;† &#6514;&#6482;&#9898;&#10186;&#4281;&#5651;&#5511; &#5045;&#5651;&#5511;&#9137; &#4281;&#6514;&#119243;&#409;&#5651;&#5511; </div></div> 1003644 1003663