Question

我有以下JSFiddle我试图根据他们远离我的距离将一个json的口袋妖怪数据字符串排序成两个数组。

var pokemon = JSON.parse(JSONoriginal); //*See JSFiddle link for full JSON String*

//encounter_ids are unique to each spawned pokemon, use these to look for & remove duplicates
    for(var x=0; x <= pokemon.result.length-1; x++){
        var aPokemon = {
                name: pokemon.result[x].pokemon_id,
                encounter_id: pokemon.result[x].encounter_id,
                expiration_timestamp_ms: pokemon.result[x].expiration_timestamp_ms,
                latitude: pokemon.result[x].latitude,
                longitude: pokemon.result[x].longitude
                };
        if(pokemon.result[x].expiration_timestamp_ms === undefined){
            //Check if pokemon's already been put into nearby array, if so then we don't need to do anything
            var a = nearby.filter(function(a){
                return a.encounter_id === aPokemon.encounter_id;
                })[0];
            if(a === undefined){
                //Put in nearby Array because we don't have a location
                nearby.push(aPokemon);
            }
        }else{
            //Check if pokemon's already been put into nearby array, if so then remove it from there
            var b = nearby.filter(function(b){
                return b.encounter_id === aPokemon.encounter_id;
                })[0];
            if(b !== undefined){
                nearby.splice(nearby.indexOf(b),1);
            }
            //Check if pokemon's already been put into immediate array, if so then we don't need to do anything
            var c = immediate.filter(function(c){
                return c.encounter_id === aPokemon.encounter_id;
                })[0];
            if(c === undefined){
                //Put it in immediate Array because we can locate & display them
                immediate.push(aPokemon);
            }
        }
    }

我能够解析我的示例json字符串并填充我的两个数组，但似乎某些pokemon不会从Nearby[]数组中移除（当它们被放入Immediate[]数组）。任何人都可以在我的逻辑中发现错误吗？如何让这个循环正常工作？

Answer 1

所以Rattata，Krabby和Squirtle在附近的部分中不应出现那些ID？问题是如果有expiration_timestamp_ms，你只检查重复项，而第二项没有。{/ p>

[编辑]

这应该可行：当将条目推送到附近时，检查条目是否已存在于直接阵列中。我已更新您的JSFiddle：

var a = nearby.filter(function(a){
    return a.encounter_id === aPokemon.encounter_id;
    })[0] || immediate.filter(function(c){
    return c.encounter_id === aPokemon.encounter_id;
    })[0];

如果在另一个数组中找到值，则不会始终从数组中删除这些值

1 个答案: