html escape single quotes

HTML escape character is a special character used to display some special symbols or characters in HTML. These characters may cause confusion or errors in HTML code and need to be escaped.

In HTML, commonly used escape characters include " for double quotes, < for less than sign, > for greater than sign, etc. But in some cases, we also need to escape single quotes, Because single quotes have specific meanings in HTML.

The role of single quotes in HTML is to define attribute values. For example:

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

In the above code example, when we click When the button is clicked, a dialog box will pop up showing "Hello World". This is because we use single quotes in the button to define the value of the onclick attribute.

But if we need to display a single quote in the button What should I do with quotation marks? At this time, we can use the escape character ' of single quotation marks. For example:

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

In the above code example, we use ' instead of single quotation marks, so that we can Single quotes are displayed in.

In addition to the ' escape character, another way to escape single quotes is to use backslashes. For example:

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

In the above code example, We use escape characters to represent single quotes. It should be noted that when using backslash to escape single quotes, you need to add a backslash before the single quote, otherwise it will be considered the end of a string. Symbol.

In short, escaping single quotes in HTML is very important, because it can help us avoid code errors and ensure the correctness and readability of the page.

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