Created
September 10, 2013 15:12
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Ordenar array mais ocorrencia e deixar unique
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Atualizado: http://jsbin.com/emonev/13/edit | |
http://jsbin.com/emonev/1/edit | |
var listaGenero = ['acao', 'drama', 'comedia', 'drama', 'drama', 'comedia', 'humor']; | |
function contarOcorrencia(genero) { | |
count = 0; | |
for (i = 0; i<=listaGenero.length - 1; i++) | |
if(listaGenero[i] == genero) | |
count++; | |
return count; | |
} | |
listaGenero.sort(function(x,y){ | |
return contarOcorrencia(x) < contarOcorrencia(y); // seria x - y pra DESC | |
}); | |
unique = listaGenero.filter(function(itm,i,a){ | |
return i==a.indexOf(itm); | |
}); | |
document.write(unique); |
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