html single quote escape

In HTML, when we want to use single quotes within double quotes, we need to escape them. This is because HTML uses double quotes as a wrapping mark for attribute values. If we use single quotes directly within double quotes, the attribute value will be truncated. So how to escape single quotes in HTML? This article will introduce it to you in detail.

1. Use escape characters

In HTML, we can use escape characters to escape single quotes. The specific escape characters are as follows:

' or '

. Both of these escape characters can escape single quotes into characters ', which are entity characters. Where we need to use single quotes, we can use one of the escape characters to escape, as shown below:

<p>单引号需要转义，例如：&apos;Hello World&apos;</p>
<p>单引号可以使用实体字符转义，例如：&#39;Hello World&#39;</p>

Both of the above examples can display single quotes correctly in HTML.

2. Use JavaScript to solve

In HTML tags, if you need to use single quotes or double quotes as attribute values, you can use JavaScript scripts to solve the problem.

For example, if you want to use single quotes to define the JavaScript code of the onclick event in the following example:

<button onclick="alert('Hello World')">点击我</button>

You can use the following method to solve it:

<button onclick="alert(&#39;Hello World&#39;)">点击我</button>

Where, ' is Entity encoding of single quotes.

3. Notes

It should be noted that in HTML5, single quotes no longer need to be escaped, because HTML5 supports the use of single quotes or double quotes to wrap attribute values.

In addition to single quotes, there are other symbols that need to be escaped in HTML, such as the greater than sign (>), less than sign (<), quotation marks ("), etc. Therefore, we need to master Only with appropriate escape characters can these special symbols be used normally in HTML.

Summary:

In HTML, single quotes require special escape processing before they can be displayed normally. We can use escape characters or JavaScript to solve this problem. However, in HTML5, single quotes can already be used directly, so we need to deal with it according to the actual situation. If you have other questions about HTML, you can continue to follow this website Other articles, or refer to related HTML tutorials.

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