blocks|key|292296|text|您正在尝试将索引0处的数组推入另一个数组中。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|292297|var+strArr+=+[]
strArr.push("someThing+Text")
console.log(strArr)|code-block|syntax|javascript|292298|如果您希望您的代码工作，您将需要这样做。|292299|var+strArr+=+[+[]+]+//+an+array+in+an+array
strArr[0].push("someThing+Text")
console.log(strArr)|292300|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|$]]

<p>You are trying to push into an array at index 0 inside another array.</p>
<pre class="lang-js prettyprint-override"><code>var strArr = []
strArr.push(&quot;someThing Text&quot;)
console.log(strArr)
</code></pre>
<p>If you wanted your code to work, you would need to do this.</p>
<pre class="lang-js prettyprint-override"><code>var strArr = [ [] ] // an array in an array
strArr[0].push(&quot;someThing Text&quot;)
console.log(strArr)
</code></pre>


blocks|key|3639342|text|在数组元素上使用的是push方法，而不是数组。您应该使用strArr.push()|type|unstyled|depth|inlineStyleRanges|entityRanges|data|3639343|entityMap^0|0^^$0|@$1|2|3|4|5|6|7|D|8|@]|9|@]|A|$]]|$1|B|3|-4|5|6|7|E|8|@]|9|@]|A|$]]]|C|$]]

<p>You are using the push method on an array element, not the array.
You should use strArr.push()</p>


blocks|key|292332|text|当您调用一个数组函数时，您需要在数组本身上调用它，即strArr.push("someThing+Text")。strArr[0]是一个数组元素，可以是数字、字符串、布尔值或其他数据类型。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|292333|但是，您可以在数组中的一个特定点添加一个数组元素，这在某种程度上是您试图使用Array.splice()所做的。这些参数是：|292334|数组元素应该是inserted|292335|number的|unordered-list-item|292336|索引(从索引开始)您想要删除实际的要插入|292337|的元素|292338|
|292339|292340|292341|​|292342|var+strArr+=+["foo",+"bar"]
strArr.splice(1,+0,+"someThing+Text")
console.log(strArr)|code-block|syntax|javascript|292343|292344|entityMap^0|Q|T|1K|9|0|12|E|0|0|0|0|0|0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|14|8|@$9|15|A|16|B|C]|$9|17|A|18|B|C]]|D|@]|E|$]]|$1|F|3|G|5|6|7|19|8|@$9|1A|A|1B|B|C]]|D|@]|E|$]]|$1|H|3|I|5|6|7|1C|8|@]|D|@]|E|$]]|$1|J|3|K|5|L|7|1D|8|@]|D|@]|E|$]]|$1|M|3|N|5|L|7|1E|8|@]|D|@]|E|$]]|$1|O|3|P|5|6|7|1F|8|@]|D|@]|E|$]]|$1|Q|3|R|5|6|7|1G|8|@]|D|@]|E|$]]|$1|S|3|-4|5|L|7|1H|8|@]|D|@]|E|$]]|$1|T|3|-4|5|6|7|1I|8|@]|D|@]|E|$]]|$1|U|3|V|5|6|7|1J|8|@]|D|@]|E|$]]|$1|W|3|X|5|Y|7|1K|8|@]|D|@]|E|$Z|10]]|$1|11|3|V|5|6|7|1L|8|@]|D|@]|E|$]]|$1|12|3|-4|5|6|7|1M|8|@]|D|@]|E|$]]]|13|$]]

<p>When you call an array function, you need to call it on the array itself, i.e. <code>strArr.push(&quot;someThing Text&quot;)</code>. <code>strArr[0]</code> is an array element, and could be a number, string, boolean, or other data type.</p>
<p>You can however add an array element at a specific point in an array, which is sort of what it looks like you were trying to do, with <code>Array.splice()</code>. The parameters are:</p>
<ul>
<li>index where array element should be inserted</li>
<li>number of items (starting at index) you want to delete</li>
<li>the actual elements you want to insert</li>
</ul>
<p><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>var strArr = ["foo", "bar"]
strArr.splice(1, 0, "someThing Text")
console.log(strArr)</code></pre>
</div>
</div>
</p>


blocks|key|2402654|text|简单地说，push是一个数组方法。这意味着它只适用于数组(因为我也是一个学习者，所以我希望得到纠正)。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|2402655|因此，只有当数组元素也是数组时，push才会对该数组元素应用/操作。另一种理解这一点的方法是注意数组中的元素可能具有不同的数据类型。每种数据类型都有一组不同(预定义的)操作/方法，可以应用于它们。push是一个预定义的方法，只能应用于类型数组的数组或数组元素。|2402656|请看下面的片段：|2402657|​|2402658|const+myArr+=+['Hello',+'World',+['Javascript',+'Python',+'PHP'],+100,+'function'];

console.log('Orginal+array+-->+'+%2B+myArr);+//+Orginal+array:+Hello,World,Javascript,Python,PHP,100,function
myArr.push(['Vue',+'Angular',+'React']);
console.log('Updated+array+-->+'+%2B+myArr);+//+Updated+array+-->+Hello,World,Javascript,Python,PHP,100,function,Vue,Angular,React
myArr[2].push('Java');
console.log('Update+myArr[2]+'+%2B+myArr);+//+Update+myArr[2]+Hello,World,Javascript,Python,PHP,Java,100,function,Vue,Angular,React|code-block|syntax|javascript|2402659|2402660|entityMap^0|5|4|0|G|4|2Q|4|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|T|8|@$9|U|A|V|B|C]]|D|@]|E|$]]|$1|F|3|G|5|6|7|W|8|@$9|X|A|Y|B|C]|$9|Z|A|10|B|C]]|D|@]|E|$]]|$1|H|3|I|5|6|7|11|8|@]|D|@]|E|$]]|$1|J|3|K|5|6|7|12|8|@]|D|@]|E|$]]|$1|L|3|M|5|N|7|13|8|@]|D|@]|E|$O|P]]|$1|Q|3|K|5|6|7|14|8|@]|D|@]|E|$]]|$1|R|3|-4|5|6|7|15|8|@]|D|@]|E|$]]]|S|$]]

<p>Simply put, <code>push</code> is an array method. that means it only applies to an array (I look forward to a correction as I am a learner too).</p>
<p>Therefore, <code>push</code> will only apply/operate on an array element if the element is an array as well. Another way to grasp this is to note that elements in an array may be of different data types. Each data type has a different (predefined) set of operations/methods that can be applied to them. <code>push</code> is a predefined method that can be applied only to an array or array element(s) that is/are of the type array.</p>
<p>See the snipped below:</p>
<p><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 myArr = ['Hello', 'World', ['Javascript', 'Python', 'PHP'], 100, 'function'];

console.log('Orginal array --&gt; ' + myArr); // Orginal array: Hello,World,Javascript,Python,PHP,100,function
myArr.push(['Vue', 'Angular', 'React']);
console.log('Updated array --&gt; ' + myArr); // Updated array --&gt; Hello,World,Javascript,Python,PHP,100,function,Vue,Angular,React
myArr[2].push('Java');
console.log('Update myArr[2] ' + myArr); // Update myArr[2] Hello,World,Javascript,Python,PHP,Java,100,function,Vue,Angular,React</code></pre>
</div>
</div>
</p>


blocks|key|2402681|text|您正在尝试使用push()方法将元素添加到特定位置。但是push()方法用于将一个或多个元素添加到数组的末尾。可以通过将对象作为参数传递给此方法来插入对象。因此，该对象被添加到数组的末尾。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|2402682|array.push(objectName)|code-block|syntax|javascript|2402683|var+strArr+=+[]
strArr.push("someThing+Text")
console.log(strArr)|2402684|entityMap^0|0|0|0^^$0|@$1|2|3|4|5|6|7|K|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|L|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|D|7|M|8|@]|9|@]|A|$E|F]]|$1|I|3|-4|5|6|7|N|8|@]|9|@]|A|$]]]|J|$]]

<p>You are trying to add the element in a specific position using push() method. But the push() method is used to add one or multiple elements to the end of an array. An object can be inserted by passing the object as a parameter to this method. The object is hence added to the end of the array.</p>
<pre><code>array.push(objectName)
</code></pre>
<pre><code>var strArr = []
strArr.push(&quot;someThing Text&quot;)
console.log(strArr)
</code></pre>


<p><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>var strArr = []
strArr[0].push("someThing Text")
console.log(strArr)</code></pre>
</div>
</div>
</p>
<p>Error: Cannot read properties of undefined (reading 'push')</p>
<p><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>var strArr = []
strArr[0] = "someThing Text"
console.log(strArr)</code></pre>
</div>
</div>
</p>
<p>Array [&quot;someThing Text&quot;]</p>
<p>What's the difference between the two? Why can't array elements use push methods?</p>


Why can't array elements use push methods in JavaScript?

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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​var strArr = []strArr[0].push("someThing Text")console.log(strArr)​错误:无法读取未定义的属性(读取“推送”)​var strArr = []strArr[0] = "someThing Text"console.log(strArr)​数组"some...

问为什么数组元素不能在JavaScript中使用push方法？
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问为什么数组元素不能在JavaScript中使用push方法？EN