How to use javascript book quotation marks

In JavaScript, book quotes are a way to represent strings. Within a string, book quotes will be used to wrap the text content.

JavaScript supports two types of book quotes: single quotes and double quotes. The two types of book quotes are used very similarly in strings, but there are differences between them that need to be noted.

Use single quotes:

In JavaScript, using single quotes to represent strings is very simple, just wrap the text content in single quotes. For example:

let myString = '这是一个使用单引号的字符串。';

In this example, the string containing the text content of the myString variable is defined using single quotes. If the string contains single quotes, you need to use double quotes to wrap the string. For example:

let myString = '这是包含单引号的字符串，可以使用双引号来定义。这里是一个双引号："';

In this example, the string contains single quotes, so you need to wrap it with double quotes at the beginning and end of the string.

Use double quotes:

Similar to single quotes, it is very simple to use double quotes to represent strings. You only need to wrap the text content in double quotes. For example:

let myString = "这是一个使用双引号的字符串。";

In this example, the string containing the text content of the myString variable is defined using double quotes. If the string contains double quotes, you need to use single quotes to wrap the string. For example:

let myString = "这是包含双引号的字符串，可以使用单引号来定义。这里是一个单引号:'";

Summary:

In JavaScript, we can use single quotes or double quotes to represent strings. Regardless of the type of book quotation marks, you need to use pairs of quotation marks to wrap the text content. If the string contains book quotes, you need to use another kind of book quotes to wrap the string. Generally speaking, since there is not much difference in usage between single quotes and double quotes, it is recommended to use the other kind of quotes only when necessary to avoid confusion.

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