Question

我有动态数量的属性对象和包含动态数量项的数组。我需要迭代它们并将数组的值赋给object的属性。

var obj = {
  property1: null,
  property2: null,
  .....
};

var array = ["some value1", "some value2"...];

必须

var obj = {
  property1: "some value1",
  property2: "some value2",
  .....
}

Answer 1

如果字面上有property1等，那么它非常简单，因为我们可以使用数组索引和括号表示法来构建该索引的属性名称（加一）：

var obj = {
  property1: null,
  property2: null
    //.....
};

var array = ["some value1", "some value2"/*...*/];
array.forEach(function(value, index) {
  //  vvvvvvvvvvvvvvvvvvvvvvvv------ string concat to build the property name
  obj["property" + (index + 1)] = value;
  // ^------------------------^----- brackets notation to refer to the property
  //                                 using a runtime-defined name
});
console.log(obj);

Answer 2

这是我的答案。如果动态属性的名称，那么，

＆＃13;

var obj = {
  property1: null,
  property2: null,
};

var array = ["some value1", "some value2"];

var i=0
for (var index in obj) {
  if (obj.hasOwnProperty(index)) {
    obj[index]=array[i];
  }
  i++;
}
console.log(obj);

＆＃13;

JavaScript迭代通过将数组的值赋给对象

2 个答案: