Angular2 - assign pipe from a variable

2020-02-13 03:23发布

问题:

Is it possible something like this:

{{property | some_variable_name}}

My goal is to use a pipe that is set in a JSON configuration (or a variable), but I'm not sure if it is possible to pass the pipe name in the interpolation this way.
Anybody tried something like this before?

回答1:

The pipe needs to be listed in pipes: [MyPipeHere] in the @Component() decorator or in PLATFORM_PIPES, therefore this approach won't work.

What you can do instead is creating a custom pipe that calls other "pipes". A pipe is basically just a function, therefore this is easy.

You can pass a variable to your custom pipe like

{{property | my_custom_pipe:some_variable_name}}

this should be pretty close to what you want.