freesewing/markdown/dev/guides/plugins/using-hooks-without-plugin/en.md

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title: Using hooks without a plugin order: 85

You can attach a method to a hook at run-time without the need for a plugin using the Pattern.on() method.

The method takes the hook name as its first argument, and the hook method as its second.

Below is an example:

pattern.on('preRender', function(svg) {
  svg.style += "svg { background: yellow;}";
});

Congratulations, you've just made your pattern yellow.