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我有這個蒙戈集合opponents
存儲每個玩家的對手更新收集的詳細
{username:foo, foo:{foo1:0,foo2:0,foo3:0}}
{username:foo1,foo1:{foo:0,foo2:0,foo3:0}}
{username:foo2,foo2:{foo:0,foo1:0,foo3:0}}//i.e player foo2 play 0 games with foo,foo1 and foo3
而且在Node.js的服務器端解決此table
對象:
var table =[{name:"foo",rounds:3},{name:"foo1",rounds:3},{name:"foo2",rounds:3},{name:"foo3",rounds:3}] //all players' name in a table with their rounds number
對於表格中的每位玩家,我希望將其對手的名字和回合追加到opponent
集合(當然不需要追加他們自己)。期望的結果是:
{username:foo, foo:{foo1:3,foo2:3,foo3:3}}
{username:foo1,foo1:{foo:3,foo2:3,foo3:3}}
{username:foo2,foo2:{foo:3,foo1:3:foo3:3}}
{username:foo3,foo3:{foo:3,foo1:3,foo2:3}}
我有一個自定義函數fun(name)
來爲每個玩家返回一個他們對手名字的數組。所以fun(table[0].name)
將返回[foo1,foo2,foo3]
function fun(name){
var result = [];
for (var i = 0; i <players.length; i++){
if(players[i].name!=name){
result.push(players[i].name)
}
}
return result;
}
這是我當前的代碼:
for (var i =0;i<table.length;i++){
db.opponents.update({username:table[i].name},{$inc:{[table[i].name + '.' + fun(table[i].name)[0] ] :table[i].rounds}})
if (table.length>2){
db.opponents.update({username:table[i].name},{$inc:{[table[i].name + '.' + fun(table[i].name)[1] ] :table[i].rounds}})
}
if (table.length>3){
db.opponents.update({username:table[i].name},{$inc:{[table[i].name + '.' + fun(table[i].name)[2] ] :table[i].rounds}})
}
但它是剛性的硬編碼,如果table.length
增加我需要更多的代碼行。我如何使用變量來使它更緊湊?我試圖使用嵌套循環,但這使得它變得更糟。