https://wiki.haskell.org/index.php?title=Clasa_Show_e_o_clasa_de_structuri_algebrice_cu_cate_operatii_%3F&feed=atom&action=history
Clasa Show e o clasa de structuri algebrice cu cate operatii ? - Revision history
2024-03-29T01:41:29Z
Revision history for this page on the wiki
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Ha$kell at 12:15, 6 February 2011
2011-02-06T12:15:09Z
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<td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Revision as of 12:15, 6 February 2011</td>
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<td class="diff-marker"><a class="mw-diff-movedpara-left" title="Paragraph was moved. Click to jump to new location." href="#movedpara_2_1_rhs">⚫</a></td>
<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div><a name="movedpara_1_0_lhs"></a>Proprietatea principala a valorilor din <del class="diffchange diffchange-inline">clasa</del> Show este ca pot fi transformate in string-uri si afisate pe ecran, ca <del class="diffchange diffchange-inline">un</del> <del class="diffchange diffchange-inline">text</del>.</div></td>
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<td class="diff-marker"><a class="mw-diff-movedpara-right" title="Paragraph was moved. Click to jump to old location." href="#movedpara_1_0_lhs">⚫</a></td>
<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><a name="movedpara_2_1_rhs"></a>Proprietatea principala a valorilor<ins class="diffchange diffchange-inline"> datyelor tipurilor de date</ins> din <ins class="diffchange diffchange-inline">[[Clasa</ins> Show<ins class="diffchange diffchange-inline">]]</ins> este ca pot fi transformate in string-uri si afisate pe ecran, ca <ins class="diffchange diffchange-inline">niste</ins> <ins class="diffchange diffchange-inline">texte</ins>.<ins class="diffchange diffchange-inline"> Toate aceste tipuri dispun de o operatie anume:</ins></div></td>
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<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>Operatia va fi:</div></td>
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<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>... unde x este tipul acelor valori de afisat.</div></td>
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<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>... unde x este tipul acelor valori de afisat.</div></td>
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<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td>
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<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>Clasa Show este clasa tipurilor afisabile.</div></td>
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<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins class="diffchange diffchange-inline">[[</ins>Clasa Show<ins class="diffchange diffchange-inline">]]</ins> este clasa tipurilor afisabile.</div></td>
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<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>Putem extinde aceste tipuri adaugand tipurile noastre, definite de utilizator si realizand o instanta a clasei [[Show]] din fiecare asemenea tip creat de noi.</div></td>
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<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>Instanta se poate realiza prin [[deriving]], automat, dar si printr-o declaratie [[instance]] care permite sa definim exact cum functioneaza show la acel tip.</div></td>
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<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>Exemple gasiti la [[Clase de tipuri]], in manualul domnului Gontineac de la Minibiblioteca sau in volumul Craft of Functional Programming de la biblioteca sau din rubruiac de stiri 2010 (?).</div></td>
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<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"></td>
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<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>Exemplu de cod gasiti pe pagina: [[Clasa Show]]</div></td>
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<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"></td>
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<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>----</div></td>
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<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>Pagina in lucru</div></td>
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<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>----</div></td>
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<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>Pagina indexata la indexul [[Category:Ro]] [http://www.haskell.org/haskellwiki/Category:Ro Categories:Ro]</div></td>
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<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>----</div></td>
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<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>[http://www.haskell.org/haskellwiki/Ro/Haskell <= Inapoi la pagina principala Ro/Haskell. ]<br> <br></div></td>
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<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>[http://www.haskell.org/haskellwiki/Intrebarile_incepatorului <'''-''' Inapoi la inceputul paginii 'Intrebarile incepatorului Ro/Haskell'. ]</div></td>
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Ha$kell
https://wiki.haskell.org/index.php?title=Clasa_Show_e_o_clasa_de_structuri_algebrice_cu_cate_operatii_%3F&diff=28676&oldid=prev
Ha$kell at 05:52, 19 June 2009
2009-06-19T05:52:32Z
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<p><b>New page</b></p><div>Proprietatea principala a valorilor din clasa Show este ca pot fi transformate in string-uri si afisate pe ecran, ca un text.<br />
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Operatia va fi:<br />
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show :: x -> String <br />
<br />
... unde x este tipul acelor valori de afisat.<br />
<br />
Clasa Show este clasa tipurilor afisabile.</div>
Ha$kell