How to remove a Z shell precmd function?

Question

I have a few functions in my Z shell precmd function list.

I can see them with

echo $precmd_functions

In this list I can see a function called _ntfy_precmd

How can I remove it from the function list?

(This function was added after installing https://github.com/dschep/ntfy)

Answer 1

Just as with adding functions to precmd you have two choices:

1. Directly manipulate the precmd_functions array:

   precmd_functions=(${precmd_functions:#_ntfy_precmd})
   

   The ${name:#pattern} parameter expansion, when used on an array, removes all elements matching pattern from the expansion of name.

2. Use the add-zsh-hook utility to remove functions from the hook functions lists:

   add-zsh-hook -d precmd _ntfy_precmd
   

   If zsh tells you that there is no add-zsh-hook command, you can load it with

   autoload -Uz add-zsh-hook
   

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BTW: You can list the functions with add-zsh-hook -L [HOOK], too.