How to automatically highlight all the words same with selection just like Notepad++

Question

For example when I select a word I want the same words to be automatically highlighted just like it in Notepad++:

When I select the word "install" in Notepad++ (all other "install" are highlighted"):

I'm using spacemacs. I tried the package auto-highlight-symbol and also the package highlight-symbol. Set mode to 1 in .spacemacs. But when I select a word no other same words highlighted:

Answer 1

Use package highlight-symbol.

(use-package highlight-symbol
  :ensure t
  :init
  (add-hook 'prog-mode-hook 'highlight-symbol-mode))

Answer 2

There are multiple packages that do this:

• auto-highlight-symbol
• highlight-symbol
• idle-highlight

They all perform the basics well enough.

Although idle-highlight was the only package that worked well on large buffers.

Answer 3

You don't need to use any external package. Take a look at the functions isearch-forward-symbol-at-point and isearch-forward-symbol.

To find out if they're bound to a key on Spacemacs, evaluate (where-is 'isearch-forward-symbol).