blocks|key|380274|text|myobj.A|type|code-block|depth|inlineStyleRanges|entityRanges|data|syntax|javascript|380275|-或|unstyled|380276|myobj['A']|380277|会让你得“B”|380278|entityMap^0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|M|8|@]|9|@]|A|$B|C]]|$1|D|3|E|5|F|7|N|8|@]|9|@]|A|$]]|$1|G|3|H|5|6|7|O|8|@]|9|@]|A|$B|C]]|$1|I|3|J|5|F|7|P|8|@]|9|@]|A|$]]|$1|K|3|-4|5|F|7|Q|8|@]|9|@]|A|$]]]|L|$]]

<pre><code>myobj.A
</code></pre>

------- or ----------

<pre><code>myobj['A']
</code></pre>

will get you 'B'

blocks|key|380314|text|如果你想要一个特定的顺序，那么你必须使用数组，而不是对象。对象没有定义的顺序。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|380315|例如，使用数组，您可以这样做：|380316|var+myobj+=+[{"A":["B"]},+{"B":+["C"]}];
var+firstItem+=+myobj[0];|code-block|syntax|javascript|380317|然后，可以使用myobj获取数组中的第一个对象。|380318|或者，根据你想要做的事情：|380319|var+myobj+=+[{key:+"A",+val:["B"]},+{key:+"B",++val:["C"]}];
var+firstKey+=+myobj[0].key;+++//+"A"
var+firstValue+=+myobj[0].val;+//+"["B"]|380320|entityMap^0|0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|Q|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|R|8|@]|9|@]|A|$]]|$1|D|3|E|5|F|7|S|8|@]|9|@]|A|$G|H]]|$1|I|3|J|5|6|7|T|8|@]|9|@]|A|$]]|$1|K|3|L|5|6|7|U|8|@]|9|@]|A|$]]|$1|M|3|N|5|F|7|V|8|@]|9|@]|A|$G|H]]|$1|O|3|-4|5|6|7|W|8|@]|9|@]|A|$]]]|P|$]]

If you want a specific order, then you must use an array, not an object. Objects do not have a defined order.

For example, using an array, you could do this:

<pre><code>var myobj = [{"A":["B"]}, {"B": ["C"]}];
var firstItem = myobj[0];
</code></pre>

Then, you can use myobj[0] to get the first object in the array.

Or, depending upon what you're trying to do:

<pre><code>var myobj = [{key: "A", val:["B"]}, {key: "B", val:["C"]}];
var firstKey = myobj[0].key; // "A"
var firstValue = myobj[0].val; // "["B"]
</code></pre>

blocks|key|380386|text|我知道这是一个迟来的回答，但我认为这就是OP所要求的。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|380387|myobj[Object.keys(myobj)[0]];|code-block|syntax|javascript|380388|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|$]]

I know it's a late answer, but I think this is what OP asked for.

<pre><code>myobj[Object.keys(myobj)[0]];
</code></pre>

blocks|key|380398|text|var+myobj+=+{"A":["Abe"],+"B":["Bob"]};

var+keysArray+=+Object.keys(myobj);

var+valuesArray+=+Object.keys(myobj).map(function(k)+{

+++return+String(myobj[k]);

});

var+mydata+=+valuesArray[keysArray.indexOf("A")];+//+Abe|type|code-block|depth|inlineStyleRanges|entityRanges|data|syntax|javascript|380399|unstyled|entityMap^0|0^^$0|@$1|2|3|4|5|6|7|G|8|@]|9|@]|A|$B|C]]|$1|D|3|-4|5|E|7|H|8|@]|9|@]|A|$]]]|F|$]]

<pre><code>var myobj = {"A":["Abe"], "B":["Bob"]};

var keysArray = Object.keys(myobj);

var valuesArray = Object.keys(myobj).map(function(k) {

 return String(myobj[k]);

});

var mydata = valuesArray[keysArray.indexOf("A")]; // Abe
</code></pre>

blocks|key|162497|text|$.each(myobj,+function(index,+value)+{+
++++console.log(myobj[index]);
});|type|code-block|depth|inlineStyleRanges|entityRanges|data|syntax|javascript|162498|unstyled|entityMap^0|0^^$0|@$1|2|3|4|5|6|7|G|8|@]|9|@]|A|$B|C]]|$1|D|3|-4|5|E|7|H|8|@]|9|@]|A|$]]]|F|$]]

<pre><code>$.each(myobj, function(index, value) { 
 console.log(myobj[index]);
});
</code></pre>

blocks|key|162502|text|myobj+=+{"A":["Abe"],+"B":["Bob"]}

Object.keys(myobj)[0];++//return+the+key+name+at+index+0
Object.values(myobj)[0]++//return+the+key+values+at+index+0|type|code-block|depth|inlineStyleRanges|entityRanges|data|syntax|javascript|162503|unstyled|entityMap^0|0^^$0|@$1|2|3|4|5|6|7|G|8|@]|9|@]|A|$B|C]]|$1|D|3|-4|5|E|7|H|8|@]|9|@]|A|$]]]|F|$]]

<pre><code>myobj = {&quot;A&quot;:[&quot;Abe&quot;], &quot;B&quot;:[&quot;Bob&quot;]}

Object.keys(myobj)[0]; //return the key name at index 0
Object.values(myobj)[0] //return the key values at index 0
</code></pre>

Ok so let's say that I have my object

<pre><code>myobj = {"A":["Abe"], "B":["Bob"]}
</code></pre>

and I want to get the first element out of it. As in I want it to return <code>Abe</code> which has an index of <code>A</code>. How can I do something along the lines of <code>myobj[0]</code> and get out "Abe".

Get element of JS object with an index

好的，假设我有我的对象myobj = {"A":["Abe"], "B":["Bob"]}我想要得到它的第一个元素。与在中一样，我希望它返回索引为A的Abe。我怎样才能像myobj[0]那样做一些事情，然后退出"Abe“。

问获取带有索引的JS对象的元素
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