There are some arguments in the web development community mention that writing code without a mouse could be faster.
Man, don't go down that route, unless you actually feel that need yourself. If you start to focus your learning on what other people are fighting over the internet you're likely to waste way too much time on meaningless things that many zealots don't understand well themselves. And miss the oportunity to focus on actually important things.
But having made that switch a few years ago, though, I'd say that working "mouselessly" can be pretty handy and useful if you are the kind of person who loves to use the keyboard... And will probably be more of a headache than a "performance boost" if you're not.
Point is: if you're the type of person who has to actually look at the keyboard to remember where a key is, or usually types with only one finger, you most likely won't gain anything from that switch.
Now that that's taken out of the way, I agree on what the others said - to be able to use nearly everything from the keyboard, VIM (or it's derivatives) is the way to go.
The biggest argument for this, IMHO is that if you learn the "VIM-way" you can use it nearly anywhere. From the command line (with VIM or NeoVim), to the modern editors and IDE's that mostly all have VIM plugins (VS Code, Sublime, Atom... heck, even Visual Studio has one) all the way to the browsers (with the Vimium ou VimiumC plugins) you can find a way to use the knowledge you acquired with VIM.
If you focus on your current editor, though, you most likely will have two major drawbacks: even an amazing and productive editor as VS Code isn't as effective with the keyboard without a VIM plugin and the more productive you get with it, the harder it will be to transfer that muscle memory you got to another editor.
Another thing that helped me a lot is to get a programmable mechanical keyboard, that way you can map distant keys (such as the arrow keys) to easier to reach keys (such as FN+HJKL to mimic VIM).
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Man, don't go down that route, unless you actually feel that need yourself. If you start to focus your learning on what other people are fighting over the internet you're likely to waste way too much time on meaningless things that many zealots don't understand well themselves. And miss the oportunity to focus on actually important things.
But having made that switch a few years ago, though, I'd say that working "mouselessly" can be pretty handy and useful if you are the kind of person who loves to use the keyboard... And will probably be more of a headache than a "performance boost" if you're not.
Point is: if you're the type of person who has to actually look at the keyboard to remember where a key is, or usually types with only one finger, you most likely won't gain anything from that switch.
Now that that's taken out of the way, I agree on what the others said - to be able to use nearly everything from the keyboard, VIM (or it's derivatives) is the way to go.
The biggest argument for this, IMHO is that if you learn the "VIM-way" you can use it nearly anywhere. From the command line (with VIM or NeoVim), to the modern editors and IDE's that mostly all have VIM plugins (VS Code, Sublime, Atom... heck, even Visual Studio has one) all the way to the browsers (with the Vimium ou VimiumC plugins) you can find a way to use the knowledge you acquired with VIM.
If you focus on your current editor, though, you most likely will have two major drawbacks: even an amazing and productive editor as VS Code isn't as effective with the keyboard without a VIM plugin and the more productive you get with it, the harder it will be to transfer that muscle memory you got to another editor.
Another thing that helped me a lot is to get a programmable mechanical keyboard, that way you can map distant keys (such as the arrow keys) to easier to reach keys (such as FN+HJKL to mimic VIM).