blocks|key|1758005|text|您可以使用arrays存储数据列表；使用objects存储键值|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|1758006|在您的例子中，您可能会同时使用这两种方法：|1758007|var+data+=+{
++++'manager':+["Prateek","Rudresh","Prashant"],+
++++'employee':+["namit","amit","sushil"],+
++++'hr':+["priya","seema","nakul"]
};|code-block|syntax|javascript|1758008|这里，data是一个对象；它包含三个数组。|style|CODE|1758009|entityMap|0|LINK|mutability|MUTABLE|url|https://developer.mozilla.org/en/JavaScript/Reference/Global_Objects/Array|1|https://developer.mozilla.org/en/JavaScript/Reference/Global_Objects/Object^0|5|6|0|K|7|1|0|0|0|3|4|0^^$0|@$1|2|3|4|5|6|7|Y|8|@]|9|@$A|Z|B|10|1|11]|$A|12|B|13|1|14]]|C|$]]|$1|D|3|E|5|6|7|15|8|@]|9|@]|C|$]]|$1|F|3|G|5|H|7|16|8|@]|9|@]|C|$I|J]]|$1|K|3|L|5|6|7|17|8|@$A|18|B|19|M|N]]|9|@]|C|$]]|$1|O|3|-4|5|6|7|1A|8|@]|9|@]|C|$]]]|P|$Q|$5|R|S|T|C|$U|V]]|W|$5|R|S|T|C|$U|X]]]]

You can use <a href="https://developer.mozilla.org/en/JavaScript/Reference/Global_Objects/Array" rel="noreferrer">arrays</a> to store list of data ; and <a href="https://developer.mozilla.org/en/JavaScript/Reference/Global_Objects/Object" rel="noreferrer">objects</a> for key-value

 
In you case, you'd probably use both :

<pre><code>var data = {
 'manager': ["Prateek","Rudresh","Prashant"], 
 'employee': ["namit","amit","sushil"], 
 'hr': ["priya","seema","nakul"]
};
</code></pre>

Here, <code>data</code> is an object ; which contains three arrays.

blocks|key|1971508|text|一个对象：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1971509|var+myobj+=+{
++"manager":+["Prateek","Rudresh","Prashant"],
++"employee":+["namit","amit","sushil"],
++"hr":+["priya","seema","nakul"]
}

alert(myobj['employee'][1]);+//+Outputs+"amit"|code-block|syntax|javascript|1971510|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

An object:

<pre><code>var myobj = {
 "manager": ["Prateek","Rudresh","Prashant"],
 "employee": ["namit","amit","sushil"],
 "hr": ["priya","seema","nakul"]
}

alert(myobj['employee'][1]); // Outputs "amit"
</code></pre>

blocks|key|1971874|text|一个普通的对象可以做到：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1971875|var+a+=+{
++++key1:+"value1",
++++key2:+["value2.1","value2.2"]
++++/*etc*/
}|code-block|syntax|javascript|1971876|通过以下方式访问：|1971877|a.key1
a["key1"]|1971878|entityMap^0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|M|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|N|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|O|8|@]|9|@]|A|$]]|$1|I|3|J|5|D|7|P|8|@]|9|@]|A|$E|F]]|$1|K|3|-4|5|6|7|Q|8|@]|9|@]|A|$]]]|L|$]]

A normal object will do:

<pre><code>var a = {
 key1: "value1",
 key2: ["value2.1","value2.2"]
 /*etc*/
}
</code></pre>

Access with:

<pre><code>a.key1
a["key1"]
</code></pre>

blocks|key|1758536|text|您可以将它们存储在一个对象数组中：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1758537|++++var+Staff+=+[
+++++++{+name:+'Prateek',+role:+manager+},
+++++++{+name:+'Rudresh',+role:+manager+},
+++++++{+name:+'Prashant',+role:+manager+},
+++++++{+name:+'Namit',+role:+employee+},
+++++++{+name:+'Amit',+role:+employee+},
+++++++{+name:+'Sushil',+role:+employee+},
+++++++{+name:+'Priya',+role:+hr+},
+++++++{+name:+'Seema',+role:+hr+},
+++++++{+name:+'Nakul',+role:+hr+},
++++];|code-block|syntax|javascript|1758538|根据应用程序的不同，添加ID属性可能也很有用。i.e|1758539|++++{+id:+223,+name:+'Prateek',+role:+manager+},|1758540|entityMap^0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|M|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|N|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|O|8|@]|9|@]|A|$]]|$1|I|3|J|5|D|7|P|8|@]|9|@]|A|$E|F]]|$1|K|3|-4|5|6|7|Q|8|@]|9|@]|A|$]]]|L|$]]

you could store them in an array of objects:

<pre><code> var Staff = [
 { name: 'Prateek', role: manager },
 { name: 'Rudresh', role: manager },
 { name: 'Prashant', role: manager },
 { name: 'Namit', role: employee },
 { name: 'Amit', role: employee },
 { name: 'Sushil', role: employee },
 { name: 'Priya', role: hr },
 { name: 'Seema', role: hr },
 { name: 'Nakul', role: hr },
 ];
</code></pre>

adding an ID attribute might be useful too depending on your application. i.e

<pre><code> { id: 223, name: 'Prateek', role: manager },
</code></pre>

blocks|key|1758636|text|对于ES2015/ES6，您可以使用Map类型。|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|1758637|使用Map，您的代码将如下所示|1758638|​|1758639|const+map+=+new+Map([
++['manager',+['Prateek',+'Rudresh',+'Prashant']],
++['employee',+['namit',+'amit',+'sushil']],
++['hr',+['priya',+'seema',+'nakul']]
])

console.log(...map.entries())|code-block|syntax|javascript|1758640|1758641|要获取单个值，可以使用Map.get('key')方法|1758642|entityMap|0|LINK|mutability|MUTABLE|url|https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Map|1|https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Map/get^0|I|3|0|0|0|0|0|0|B|E|1|0^^$0|@$1|2|3|4|5|6|7|Z|8|@]|9|@$A|10|B|11|1|12]]|C|$]]|$1|D|3|E|5|6|7|13|8|@]|9|@]|C|$]]|$1|F|3|G|5|6|7|14|8|@]|9|@]|C|$]]|$1|H|3|I|5|J|7|15|8|@]|9|@]|C|$K|L]]|$1|M|3|G|5|6|7|16|8|@]|9|@]|C|$]]|$1|N|3|O|5|6|7|17|8|@]|9|@$A|18|B|19|1|1A]]|C|$]]|$1|P|3|-4|5|6|7|1B|8|@]|9|@]|C|$]]]|Q|$R|$5|S|T|U|C|$V|W]]|X|$5|S|T|U|C|$V|Y]]]]

With ES2015/ES6 you have <a href="https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Map" rel="noreferrer">Map</a> type.

Using Map your code will look like

<div class="snippet" data-lang="js" data-hide="false" data-console="true" data-babel="false">
<div class="snippet-code">
<pre class="snippet-code-js lang-js prettyprint-override"><code>const map = new Map([
 ['manager', ['Prateek', 'Rudresh', 'Prashant']],
 ['employee', ['namit', 'amit', 'sushil']],
 ['hr', ['priya', 'seema', 'nakul']]
])

console.log(...map.entries())</code></pre>
</div>
</div>


To get Individual value you can use <a href="https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Map/get" rel="noreferrer">Map.get('key')</a> method

blocks|key|1971750|text|是的，有：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1971751|var+theArray+=+{};
theArray["manager"]+=+["Prateek","Rudresh","Prashant"];
theArray["employee"]+=+["namit","amit","sushil"];
theArray["hr"]+=+["priya","seema","nakul"];|code-block|syntax|javascript|1971752|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

Yes there is:

<pre><code>var theArray = {};
theArray["manager"] = ["Prateek","Rudresh","Prashant"];
theArray["employee"] = ["namit","amit","sushil"];
theArray["hr"] = ["priya","seema","nakul"];
</code></pre>

blocks|key|1758367|text|或者像这样使用JSON。对您的伪代码稍作修改，但它将是可搜索和可扩展的。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1758368|var+Person+=+[
{
++++"name":+"Prateek",
++++"position":+"manager"},
{
++++"name":+"James",
++++"position":+"employee"}

];|code-block|syntax|javascript|1758369|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

Or use JSON like this. A little change of your pseudo code, but it will be serchable and extendable.

<pre><code>var Person = [
{
 "name": "Prateek",
 "position": "manager"},
{
 "name": "James",
 "position": "employee"}

];
</code></pre>

blocks|key|1758220|text|甚至你也可以像下面这样使用东西：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1758221|var+obj+=+new+Object();

obj.name+=+'Jatin';
obj.place+=+'Delhi';|code-block|syntax|javascript|1758222|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

Even you can use stuff as below :-

<pre><code>var obj = new Object();

obj.name = 'Jatin';
obj.place = 'Delhi';
</code></pre>

I want to store information like:

Pseudo-Code

<pre><code>array(manager) = {"Prateek","Rudresh","Prashant"};
array(employee) = {"namit","amit","sushil"};
array(hr) = {"priya","seema","nakul"};
</code></pre>

What kind of data structure can I use?

Is there any key/value pair structure in JavaScript?

数据结构

JSON

我想存储如下信息：伪码array(manager) = {"Prateek","Rudresh","Prashant"};array(employee) = {"namit","amit","sushil"};array(hr) = {"priya","seema","nakul"};我可以使用哪种数据结构？

问JavaScript中是否有键/值对结构？
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