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When to use a hook in Prog mode?
This provides a convenient way to use a single hook to affect several related modes. In particular, if you want to apply a hook function to any programming language mode, add it to prog-mode-hook; Prog mode is a major mode that does little else than to let other major modes inherit from it, exactly for this purpose.
When to use a custom hook in JavaScript?
When we want to share logic between two JavaScript functions, we extract it to a third function. Both components and Hooks are functions, so this works for them too! A custom Hook is a JavaScript function whose name starts with ”use” and that may call other Hooks. For example, useFriendStatus below is our first custom Hook:
Which is an example of a custom hook?
A custom Hook is a JavaScript function whose name starts with ”use” and that may call other Hooks. For example, useFriendStatus below is our first custom Hook:
How to use a hook in LaTeX mode?
Because LaTeX mode runs latex-mode-hook after running text-mode-hook, the result leaves Auto Fill mode disabled. Here is a more complex example, showing how to use a hook to customize the indentation of C code: (setq my-c-style ‘ ( (c-comment-only-line-offset .
How to enable C99 mode in GCC with terminal?
The different options for C dialect can be found here. As you are using make you can set the command line options for gcc using CFLAGS: Addendum (added late 2016): C99 is getting kind of old by now, people looking at this answer might want to explore C11 instead. You may try to use the -std=c99 flag.
How to set a hook variable in Emacs?
You can set a hook variable with setq like any other Lisp variable, but the recommended way to add a function to a hook (either normal or abnormal) is to use add-hook, as shown by the following examples. See Hooks in The Emacs Lisp Reference Manual, for details. Most major modes run one or more mode hooks as the last step of initialization.
Which is the hook function of the hook?
The individual functions in the list are called the hook functions of the hook. For example, the hook kill-emacs-hook runs just before exiting Emacs (see Exiting ). Most hooks are normal hooks.
How to remove a hook from a function?
If you play with adding various different versions of a hook function by calling add-hook over and over, remember that all the versions you added will remain in the hook variable together. You can clear out individual functions by calling remove-hook, or do (setq hook-variable nil) to remove everything.