如果有人需要动态创建字典对象，可以使用下面的代码片段

让var =[{关键:“关键”,价值:“价值”},{关键:“key2”价值:“value2”}); 让dict = {} vars.map (varItem = > { dict [varItem.key] = varItem.value }) console.log(东西)

你可以像这样初始化字典

var vars = {
"key1": "Search",
"key2": "View"
};

像这样访问它

console.log(vars["key1"]);

既然你已经声明，你想要一个字典对象(而不是一个数组，像我假设一些理解)，我认为这是你想要的:

var input = [{key:"key1", value:"value1"},{key:"key2", value:"value2"}];

var result = {};

for(var i = 0; i < input.length; i++)
{
    result[input[i].key] = input[i].value;
}

console.log(result); // Just for testing

很简单:

var blah = {}; // make a new dictionary (empty)

or

var blah = {key: value, key2: value2}; // make a new dictionary with two pairs 

then

blah.key3 = value3; // add a new key/value pair
blah.key2; // returns value2
blah['key2']; // also returns value2

我遇到了这个问题。但是在for循环中。上面的解决方案不起作用(当使用变量(而不是字符串)作为push函数的参数时)，其他解决方案没有考虑基于变量的键值。我很惊讶这种方法(这是常见的php)工作..

  // example dict/json                  
  var iterateDict = {'record_identifier': {'content':'Some content','title':'Title of my Record'},
    'record_identifier_2': {'content':'Some  different content','title':'Title of my another Record'} };

  var array = [];

  // key to reduce the 'record' to
  var reduceKey = 'title';

  for(key in iterateDict)
   // ultra-safe variable checking...
   if(iterateDict[key] !== undefined && iterateDict[key][reduceKey] !== undefined)
    // build element to new array key
     array[key]=iterateDict[key][reduceKey];

var dict = {};

dict['key'] = "testing";

console.log(dict);

就像python一样工作:)

控制台输出:

Object {key: "testing"}