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This article mainly explains "how to use the parse method of CSS". The content of the explanation is simple and clear, and it is easy to learn and understand. Please follow the editor's train of thought to study and learn "how to use the parse method of CSS".

The css module provides a method parse that parses the css content, which returns the abstract grammar tree (AST) of the css content.

Figure 1

The execution result of figure 1 is as follows:

Figure 2

The parse method can also pass in a second parameter, which is an object and has two properties, one of which is source, which represents the path of the css file. If there is a source attribute in the parameter, the path of the file will be included in the abstract syntax tree result returned by the parse method or in the parsing error message. The other property is silent, and if this property is set, the parse method will not throw an error even if there is an error in the parsing.

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