JavaScript 迭代将数组的值分配给对象

Question

我有具有动态数量的属性的对象和具有动态数量的项目的数组。我需要遍历它们并将数组的值分配给对象的属性。

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

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

必须

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

Answer 1

如果您字面上有property1等，那么这非常简单，因为我们可以使用数组索引和括号表示法从该索引构建属性名称(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);