使用jquery从div拆分文本

Question

<div id="qselected">
    <div class="qitem di ui-draggable ui-draggable-handle">
        2.A computational agent is considered intelligent if it can adapt its actions to a particular setting.
    </div>
    <div class="qitem di ui-draggable ui-draggable-handle">
        4.A computational agent is considered intelligent if it can adapt its actions to a particular setting.
    </div>
</div>

ans5 = $('#qselected div').map(function(){
    return this.class;
});
for(i=0; i < ans5.length; i++)
    alert(ans5[i]);

如何从div id "qselected“和类"qitem”中获取文本。我想讲述一下div和div‘中的所有文本。从数组arr到2。如果计算代理能够将其操作调整到特定的setting.similarly for arr1到4，则计算代理被认为是智能的。如果计算代理能够将其操作调整到特定的setting.Help me以提前退出issue.Thanks，则被认为是智能的。

Answer 1

代码中的问题是您没有访问正确的属性。没有属性作为class，因此它必须返回未定义的

您需要在textContent中返回.map()属性和.get()，以获得基本数组。

​

var arr = $('#qselected .qitem').map(function(key, item){
   return this.textContent.trim(); //$(this).text().trim();
}).get();
console.log(arr)

<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<div id="qselected">
    <div class="qitem di ui-draggable ui-draggable-handle">
        2.A computational agent is considered intelligent if it can adapt its actions to a particular setting.
    </div>
    <div class="qitem di ui-draggable ui-draggable-handle">
        4.A computational agent is considered intelligent if it can adapt its actions to a particular setting.
    </div>
</div>

​

Answer 2

如果您希望在不使用jquery的情况下完成它

var arr = Array.prototype.slice.call(document.querySelectorAll('.qitem')).map(function(a){return a.textContent});