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HomeWeb Front-endFront-end Q&AHow jquery correctly sets the value of text in IE8

<p>IE8 jquery 设置text的值</p> <p>在前端开发中,jquery已经成为了不可或缺的一部分。然而,在IE8中,使用jquery设置text的值会遇到一些问题。本文将介绍如何在IE8中正确设置text的值。</p> <p>问题</p> <p>在jquery中,我们通常使用<code>text()</code>方法来设置一个元素的文本内容。例如:</p> <pre class="brush:php;toolbar:false">$('#myDiv').text('Hello World!');</pre> <p>这行代码可以将一个id为myDiv的元素的文本内容设置为"Hello World!"。然而,在IE8中,这个方法会出现问题。当我们使用这个方法来设置一个包含HTML实体(如<code><</code>)的字符串时,会被错误地转义。如下所示:</p><pre class="brush:php;toolbar:false">$(&#39;#myDiv&#39;).text(&#39;<p>Hello World!</p>');<p>在IE8中,这行代码的结果是将myDiv的文本内容设置为<code>&lt;p&gt;Hello World!&lt;/p&gt;</code>,而不是<code><p>Hello World!</p></code>。</p> <p>解决方案</p> <p>为了解决这个问题,我们可以使用jquery的<code>html()</code>方法,而不是<code>text()</code>方法。例如:</p> <pre class="brush:php;toolbar:false">$('#myDiv').html('<p>Hello World!</p>');</pre> <p>这个方法可以正确地将myDiv的文本内容设置为<code><p>Hello World!</p></code>。</p> <p>不过,需要注意的是,使用<code>html()</code>方法可能会有潜在的安全问题。如果你不确定输入的内容是否安全,请使用jquery的<code>text()</code>方法,或者手动转义HTML实体。</p> <p>结论</p> <p>在IE8中,使用jquery的<code>text()</code>方法设置包含HTML实体的字符串会出现问题。为了解决这个问题,我们可以使用<code>html()</code>方法来设置元素的文本内容,但是需要注意潜在的安全问题。</p></code></p>

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