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I have not heard any good argument for a leader key better than <space>. <space>f, t, b for fzf (and t is not a stretch on my keyboard layout)

The only thing preventing me from using <space> is the slight lag it introduce each time <space> is used in insert mode.

It is bearable with ',', but I cannot stand it with <space>.

If it is possible to remove completely this lag (not simply reduce it), then it would be awesome.

Do you need to use it on insert mode as well? I set to use space as the leader key only on normal mode so there's no lag.

Apologies if this is incorrect (on my phone atm) but I've been using <space> as leader for two years now, and have never ever noticed lag in insert mode.

Perhaps it's a setting you have enabled/disabled, or unrelated to vim?

Presumably you don't have any <leader> key mappings that are active in insert mode?

This lag is introduced by vim, to wait for the next keys and see if you are actually inserting them or using mapped key sequence.

It is configurable in vim, but then either you have a lag and you are able to use your key sequence, or you don't and <leader> sequences cannot be used.

So maybe I have something configured that sets it wrong, but I do not see how to reconcile both things.

Unless you’re deliberately enabling certain key mappings in insert mode, then yes you’ve configured something wrong. And if you have deliberately enabled these bindings, you’re probably misunderstanding Vim.

The whole point of Vim’s normal mode is to free up “modifier-free” key mappings for commands rather than inserting characters. So by extension, using “modifier-free” key mappings for commands in insert mode is a Vim anti-pattern (if you want custom mapping’s in insert mode, use mappings for them with modifier keys).

Regarding your issue, I suspect your defining your bindings with the `map` keyword when you should be using `nmap` (or better yet `nnoremap‘).

The problem is not the leader itself, but instead the bindings you're setting using leader: Use nmap instead of imap so that the mappings aren't even checked during insert mode.

You can't use space as leader in insert-mode?

> (and t is not a stretch on my keyboard layout)


t? How does that not ruin "to" movements?

It's hit after leader. `t` on its own is still `to`.

Why would it? In the Colemak layout, 't' is on the left-hand index finger, it couldn't be more convenient.


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