javascript：将数组一一插入对象答案

【问题标题】：javascript: Inserting Arrays into object one by onejavascript：将数组一一插入对象
【发布时间】：2018-03-20 05:54:15
【问题描述】：

我需要将位置、商品等数组插入到一个对象中，在这种情况下是 refdata。我需要将数组插入到对象 一个一个 ..正如我在下面的代码中所做的那样：-

但我没有得到想要的输出。任何帮助将不胜感激。

var refdata = {
    locations: [],
    commodities: []

}

var locations=[
    {
      "symbol": "IND",
      "name": "INDIA"
    }
  ]

 var commodities= [
    {
      "name": "Aluminium",
      "symbol": "AL"
    }
  ]
this.refdata={locations};
this.refdta={commodities};

console.log(this.refdata)

【问题讨论】：

先修复语法错误
this.refdata={commodities}; 覆盖this.refdata={locations};
是的，你是对的@Jaromanda X
添加了一个 ES6 答案，因为您标记了您的问题 ecmascript-6。

标签： javascript ecmascript-6 ecmascript-2016

【解决方案1】：

你可以只pushrefdata和locations的0个元素

var refdata = {
  locations: [],
  commodities: []

}

var locations = [{
  "symbol": "IND",
  "name": "INDIA"
}]

var commodities = [{
  "name": "Aluminium",
  "symbol": "AL"
}]


refdata.locations.push(locations[0]);
refdata.commodities.push(commodities[0]);

console.log(refdata);

或者直接分配它来覆盖值。

var refdata = {
  locations: [],
  commodities: []

}

var locations = [{
  "symbol": "IND",
  "name": "INDIA"
}]

var commodities = [{
  "name": "Aluminium",
  "symbol": "AL"
}]


refdata.locations = locations;
refdata.commodities = commodities;

console.log(refdata);

【讨论】：

谢谢兄弟。非常感谢！
@ShivendraGupta 乐于助人:)

【解决方案2】：

在 ES6 中，您可以在这种情况下使用简写语法：

let locations = [{
  "symbol": "IND",
  "name": "INDIA"
}]

let commodities = [{
  "name": "Aluminium",
  "symbol": "AL"
}]

let refdata = { locations, commodities }

console.log(refdata)

let refdata = { locations, commodities }

是

的缩写

let refdata = { locations: locations, commodities: commodities }

如果需要一一做，如你的问题所述，可以使用Object.assign()：

let refdata = {}

let locations = [{
  "symbol": "IND",
  "name": "INDIA"
}]

refdata = Object.assign(refdata, { locations })

let commodities = [{
  "name": "Aluminium",
  "symbol": "AL"
}]

refdata = Object.assign(refdata, { commodities })

console.log(refdata)

提示：我添加这个答案是因为你标记了你的问题ecmascript-6。

【讨论】：

【解决方案3】：

因为您想将项目一一插入到 refdata 位置数组中。我想您想对每个项目进行一些操作。如果是这样，下面的代码将是合适的。

var refdata = {
    locations: [],
    commodities: []
};

var locations=[
    {
      "symbol": "IND",
      "name": "INDIA"
    }
  ];

 var commodities= [
    {
      "name": "Aluminium",
      "symbol": "AL"
    }
  ];
  
 for (loc of locations) {
    // Do your object manipulation of loc if required
    console.log(loc);
    refdata.locations.push(loc);
 };
 for (commodity of commodities) {
    // Do your object manipulation of commodity if required
    console.log(commodity);
    refdata.commodities.push(commodity);
 };
 
console.log(refdata);

【讨论】：