How does the `stringformat` filter convert a floating-point number to a string with thousands separators?

In the template development of Anqi CMS,stringformatstringformatHow to implement this filter?

stringformatBasic capabilities: Formatting floating-point numbers

First, let's take a look back atstringformatBasic functions of the filter. This filter is similar to that in many programming languagesprintfor built-in in Go languagefmt.SprintfFunction.It receives a formatted string as a parameter to control the output format of variables.

{{ 3.141592653|stringformat:"%.2f" }}

This code's output will be3.14. It successfully truncates the floating-point number and retains two decimal places. Similarly, if you need to output an integer, you can use%d:

{{ 888|stringformat:"Test: %d" }}

as the output will beTest: 888.stringformatExcellent in controlling the precision, width of numbers, and embedding of strings, it is a powerful assistant for handling data display in templates.

Core issue: How to implement thousand separators?

However, when our goal is to convert a floating-point number to a string with thousand separators, for example, converting1234567.89Formatted as `1,234,567.8