blocks|key|1795342|text|test是一个数组，test2是一个对象。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1795343|菜单是一个对象。|1795344|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|F|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|G|8|@]|9|@]|A|$]]|$1|D|3|-4|5|6|7|H|8|@]|9|@]|A|$]]]|E|$]]

test is an array and test2 is an object.

menus is an Object.

blocks|key|1795398|text|由于JavaScript中没有关联数组，因此如果要分配key:val对并模拟关联数组功能和引用行为，则需要使用对象。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1795399|var+test+=+["str1","str2","str3","str4"];表示数字索引的数组。我们看到对数组进行分组的方括号，并且我们只看到逗号分隔的值。如果我们想访问'str3‘，我们会使用test[2]。|offset|length|style|CODE|1795400|var+test2+=+{id:"str1",id2:"str2",id3:"str3",id4:"str4"};是一个对象。我们可以看到对对象参数进行分组的花括号，还可以看到键:val对被冒号分割。如果我们想访问'str3'，我们会使用test2.id3|1795401|初学者可能会感到困惑的一件事是，对象可以包含数组，而数组可以包含对象，因此方括号和花括号可以混合在一起，并且不会立即明显。可以通过像var+arr+=+new+Array()这样的数组对象创建数组。为了简单起见，将它们分开，并根据它们的预期行为调用它们：[]+=[]和{}+=+object。|1795402|在您的示例中：|1795403|var+menus+=+{
++++name:+menu('Control',+[
++++{
++++++++label:+'Public+Class+My+Robot',
++++++++....|code-block|syntax|javascript|1795404|您可以看到menus是一个对象，因为它被分配给了一个大括号。您可以看到，name是一个键，menu('Control'是一个值，在本例中恰好是一个函数。它的第一个参数是一个显而易见的字符串，它的第二个参数是一个只包含一个值的数组[]，它是一个具有键的对象{}：val对-+label是键，'Public+Class+My+Robot'是值，在本例中只是一个字符串。|1795405|entityMap^0|0|0|15|2S|7|0|0|1L|3B|9|0|1U|L|3J|2|3N|2|3Q|2|0|0|0|5|5|10|4|19|E|36|2|3J|2|3S|5|40|N|0^^$0|@$1|2|3|4|5|6|7|W|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|X|8|@$D|Y|E|Z|F|G]|$D|10|E|11|F|G]]|9|@]|A|$]]|$1|H|3|I|5|6|7|12|8|@$D|13|E|14|F|G]|$D|15|E|16|F|G]]|9|@]|A|$]]|$1|J|3|K|5|6|7|17|8|@$D|18|E|19|F|G]|$D|1A|E|1B|F|G]|$D|1C|E|1D|F|G]|$D|1E|E|1F|F|G]]|9|@]|A|$]]|$1|L|3|M|5|6|7|1G|8|@]|9|@]|A|$]]|$1|N|3|O|5|P|7|1H|8|@]|9|@]|A|$Q|R]]|$1|S|3|T|5|6|7|1I|8|@$D|1J|E|1K|F|G]|$D|1L|E|1M|F|G]|$D|1N|E|1O|F|G]|$D|1P|E|1Q|F|G]|$D|1R|E|1S|F|G]|$D|1T|E|1U|F|G]|$D|1V|E|1W|F|G]]|9|@]|A|$]]|$1|U|3|-4|5|6|7|1X|8|@]|9|@]|A|$]]]|V|$]]

Since there are no associative arrays in JavaScript, you need to use objects if you want to assign key:val pairs and simulate the associative array functionality and reference behavior.

<code>var test = ["str1","str2","str3","str4"];</code> signifies a numerically-indexed array. We see the square brackets which groups the array, and we only see comma delimited values. If we wanted to access 'str3' we'd use <code>test[2]</code>. 

<code>var test2 = {id:"str1",id2:"str2",id3:"str3",id4:"str4"};</code> is an object. We see the curly braces which groups the object parameters, and we can see the key:val pairs split by the colon. If we want to access 'str3', we'd use <code>test2.id3</code>

One thing that might be confusing to beginners is that objects can contain arrays and arrays can contain objects, so the square brackets and curly braces can be mixed in and not be immediately obvious. You can create an array through the Array object like <code>var arr = new Array()</code>. To keep things simple, segregate them and call them by their intended behavior: <code>[]</code> = array, and <code>{}</code> = object. 

In your example: 

<pre><code>var menus = {
 name: menu('Control', [
 {
 label: 'Public Class My Robot',
 ....
</code></pre>

You can see that <code>menus</code> is an object because it's assigned to a curly brace. You can see that <code>name</code> is a key and <code>menu('Control'</code> is a value, which happens to be a function in this case. It's first parameter is an obvious string, and it's second is an array <code>[]</code> which only contains one value, which is an object <code>{}</code> which has key:val pairs - <code>label</code> being the key, and <code>'Public Class My Robot'</code> being the value which is simply a string in this case.

blocks|key|3695880|text|将test变量赋给Array文本。将test2变量赋给Object文本。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|3695881|3695882|https://developer.mozilla.org/en/JavaScript/Reference/Global_Objects/Array|unordered-list-item|3695883|https://developer.mozilla.org/en/JavaScript/Reference/Global_Objects/Object|3695884|3695885|我读到过--但无法确认--从技术上讲，Array和Object与其他语言中的散列映射构造最接近，不同之处在于Arrays只有Number键，而Objects可以有任何类型作为键类型(特别是Strings)。在JavaScript中不建议在Array中使用String键(即使用关联Array)。|3695886|将menus变量赋给Object文本。|3695887|请澄清您所说的意思：|3695888|菜单函数中的|3695889|如何根据调用的菜单获得名称或不同的名称？|blockquote|3695890|3695891|3695892|如果menu+Function返回任何类型的对象，键name或diffname将映射到该值:即|3695893|var+nameValue+=+menus.name+;
var+nameDiffValue+=+menus.diffname+;|code-block|syntax|javascript|3695894|entityMap|0|LINK|mutability|MUTABLE|url|1^0|1|4|9|5|I|5|R|6|0|0|0|22|0|0|0|23|1|0|0|J|5|P|6|1I|6|1Q|6|1Z|7|2M|7|3B|5|3J|6|3W|5|0|1|5|A|6|0|0|0|0|0|0|2|4|7|8|Q|4|V|8|0|0^^$0|@$1|2|3|4|5|6|7|1E|8|@$9|1F|A|1G|B|C]|$9|1H|A|1I|B|C]|$9|1J|A|1K|B|C]|$9|1L|A|1M|B|C]]|D|@]|E|$]]|$1|F|3|-4|5|6|7|1N|8|@]|D|@]|E|$]]|$1|G|3|H|5|I|7|1O|8|@]|D|@$9|1P|A|1Q|1|1R]]|E|$]]|$1|J|3|K|5|I|7|1S|8|@]|D|@$9|1T|A|1U|1|1V]]|E|$]]|$1|L|3|-4|5|6|7|1W|8|@]|D|@]|E|$]]|$1|M|3|N|5|6|7|1X|8|@$9|1Y|A|1Z|B|C]|$9|20|A|21|B|C]|$9|22|A|23|B|C]|$9|24|A|25|B|C]|$9|26|A|27|B|C]|$9|28|A|29|B|C]|$9|2A|A|2B|B|C]|$9|2C|A|2D|B|C]|$9|2E|A|2F|B|C]]|D|@]|E|$]]|$1|O|3|P|5|6|7|2G|8|@$9|2H|A|2I|B|C]|$9|2J|A|2K|B|C]]|D|@]|E|$]]|$1|Q|3|R|5|6|7|2L|8|@]|D|@]|E|$]]|$1|S|3|T|5|6|7|2M|8|@]|D|@]|E|$]]|$1|U|3|V|5|W|7|2N|8|@]|D|@]|E|$]]|$1|X|3|-4|5|6|7|2O|8|@]|D|@]|E|$]]|$1|Y|3|-4|5|6|7|2P|8|@]|D|@]|E|$]]|$1|Z|3|10|5|6|7|2Q|8|@$9|2R|A|2S|B|C]|$9|2T|A|2U|B|C]|$9|2V|A|2W|B|C]|$9|2X|A|2Y|B|C]]|D|@]|E|$]]|$1|11|3|12|5|13|7|2Z|8|@]|D|@]|E|$14|15]]|$1|16|3|-4|5|6|7|30|8|@]|D|@]|E|$]]]|17|$18|$5|19|1A|1B|E|$1C|H]]|1D|$5|19|1A|1B|E|$1C|K]]]]

The <code>test</code> variables is assigned to an <code>Array</code> literal. The <code>test2</code> variable is assigned to an <code>Object</code> literal.

<ul>
<li><a href="https://developer.mozilla.org/en/JavaScript/Reference/Global_Objects/Array" rel="nofollow">https://developer.mozilla.org/en/JavaScript/Reference/Global_Objects/Array</a></li>
<li><a href="https://developer.mozilla.org/en/JavaScript/Reference/Global_Objects/Object" rel="nofollow">https://developer.mozilla.org/en/JavaScript/Reference/Global_Objects/Object</a></li>
</ul>

I have read -- but cannot confirm -- that technically <code>Array</code>s and <code>Object</code>s are best comparable to hash map constructs in other languages, the difference being that while <code>Arrays</code> have only <code>Number</code> keys, <code>Objects</code> may have any type as the key type (especially <code>Strings</code>).
The use of <code>String</code> keys in <code>Array</code>s (i.e. the use of associative <code>Array</code>s) is not suggested in JavaScript.

The <code>menus</code> variable is assigned to an <code>Object</code> literal.

Please clarify what you mean by this: 

<blockquote>
 From the menu function how could one get name or diff name depending on which had called menu?
</blockquote>

If the <code>menu</code> <code>Function</code> returns an object of any type, the keys <code>name</code> or <code>diffname</code> will be mapped to that value: i.e. 

<pre><code>var nameValue = menus.name ;
var nameDiffValue = menus.diffname ;
</code></pre>

blocks|key|3695920|text|type|unstyled|depth|inlineStyleRanges|entityRanges|data|3695921|菜单又是什么类型的变量？(数组，对象，...?)下面两段代码有什么不同：|blockquote|3695922|3695923|3695924|var+test+=+["str1","str2","str3","str4"];+
var+test2+=+{id:"str1",id2:"str2",id3:"str3",id4:"str4"};|code-block|syntax|javascript|3695925|test是一个数组，它是一个对象。|offset|length|style|CODE|3695926|test2是一个对象。在Javascripts+objects+can+be+represented+as+associative+arrays中：test2对象上的属性id可以作为test2.id和test2["id"]进行访问|3695927|因此，test和test2既是对象又是数组|3695928|entityMap|0|LINK|mutability|MUTABLE|url|http://www.quirksmode.org/js/associative.html^0|0|0|0|0|0|0|4|0|0|5|22|5|2J|8|2S|B|O|1C|0|0|3|4|8|5|0^^$0|@$1|2|3|-4|4|5|6|12|7|@]|8|@]|9|$]]|$1|A|3|B|4|C|6|13|7|@]|8|@]|9|$]]|$1|D|3|-4|4|5|6|14|7|@]|8|@]|9|$]]|$1|E|3|-4|4|5|6|15|7|@]|8|@]|9|$]]|$1|F|3|G|4|H|6|16|7|@]|8|@]|9|$I|J]]|$1|K|3|L|4|5|6|17|7|@$M|18|N|19|O|P]]|8|@]|9|$]]|$1|Q|3|R|4|5|6|1A|7|@$M|1B|N|1C|O|P]|$M|1D|N|1E|O|P]|$M|1F|N|1G|O|P]|$M|1H|N|1I|O|P]]|8|@$M|1J|N|1K|1|1L]]|9|$]]|$1|S|3|T|4|5|6|1M|7|@$M|1N|N|1O|O|P]|$M|1P|N|1Q|O|P]]|8|@]|9|$]]|$1|U|3|-4|4|5|6|1R|7|@]|8|@]|9|$]]]|V|$W|$4|X|Y|Z|9|$10|11]]]]

<blockquote>
 Also what kind of var is menus? (Array, Object,...?) What is the
 difference between the following two snippets of code:
</blockquote>

<pre><code>var test = ["str1","str2","str3","str4"]; 
var test2 = {id:"str1",id2:"str2",id3:"str3",id4:"str4"};
</code></pre>

<code>test</code> is an Array, which is an Object.

<code>test2</code> is an Object. In Javascripts <a href="http://www.quirksmode.org/js/associative.html" rel="nofollow">objects can be represented as associative arrays</a>: a property id on the <code>test2</code> object can be accessed as <code>test2.id</code> and also as <code>test2["id"]</code>

So, <code>test</code> and <code>test2</code> are both objects and arrays

From the below code one can discern that the function menu is called with three parameters.
From the menu function how could one get name or diff name depending on which had called menu?

<pre><code>var menus = {
 name: menu('Control', [
 {
 label: 'Public Class My Robot',
 trigger: true,
 script: 'public class MyRobot extends SimpleRobot\n{\n[[next]]\n}\n',
 helptext: "Beginning fo your program",
 depend: "package edu.team2648.frcEasyJ;"
 }], false),
 diffname: menu('Control2', [
 {
 label: 'Public Class My Robot',
 trigger: true,
 script: 'public class MyRobot extends SimpleRobot\n{\n[[next]]\n}\n',
 helptext: "Beginning fo your program",
 depend: "package edu.team2648.frcEasyJ;"
 }], false),
};
</code></pre>

Also what kind of var is menus? (Array, Object,...?)
What is the difference between the following two snippets of code: 

<pre><code>var test = ["str1","str2","str3","str4"];

var test2 = {id:"str1",id2:"str2",id3:"str3",id4:"str4"};
</code></pre>

Javascript arrays or objects the difference and how to get the index.

翻译质量差，导致语言生硬或混乱。

没有提供实际的解决方法或示例。

解答不清晰，无法理解或解决问题。

页面排版不美观，阅读体验差。

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从下面的代码可以看出，函数菜单是用三个参数调用的。从菜单函数中，如何根据调用的菜单来获取名称或不同的名称？var menus = {    name: menu('Control', [    {        label: 'Public Class My Robot',        trigger: true, ...

问Javascript数组或对象的区别以及如何获得索引。
EN

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问Javascript数组或对象的区别以及如何获得索引。EN