Disable prettier for a single file

Another option is to use the prettier block-like toggle, to disable formatting for a "block" within a file.
For example, adding // prettier-ignore before the start of a function definition, will disable prettier formatting for that function.
Similarly, if you put the line above an if statement, only the if block is ignored.

Basically a block is denoted by a pair of { } matching braces.

... (code up here is formatted by prettier)

// prettier-ignore
function noPrettierFormattingInHere(){
  ...
}

... (code down here is formatted by prettier)

If you want a certain file in a repo to never be formatted by prettier, you can add it to a .prettierignore file: Disable Prettier for one file

From the docs:

To exclude files from formatting, create a .prettierignore file in the root of your project. .prettierignore uses gitignore syntax.

Example:

# Ignore artifacts: 
build 
coverage

# Ignore all HTML files:
*.html 

Thanks to evolutionxbox, so far couple of solutions were found.

Ignoring Files or Folders

To exclude files from formatting, add entries to a .prettierignore file in the project root or set the --ignore-path CLI option. .prettierignore uses gitignore syntax.

/app/src/scripts/example.js
/app/src/folder/

Ignore based on extension

To exclude files based on extesntion you can add entries to a .prettierignore file as well

*.html.erb

Ignore lines

JavaScript

A JavaScript comment of // prettier-ignore will exclude the next node in the abstract syntax tree from formatting.

    matrix(
      1, 0, 0,
      0, 1, 0,
      0, 0, 1
    )

    // prettier-ignore
    matrix(
      1, 0, 0,
      0, 1, 0,
      0, 0, 1
    )

will be transformed to:

    matrix(1, 0, 0, 0, 1, 0, 0, 0, 1);

    // prettier-ignore
    matrix(
      1, 0, 0,
      0, 1, 0,
      0, 0, 1
    )

JSX

    <div>
      {/* prettier-ignore */}
      <span     ugly  format=''   />
    </div>

more: https://prettier.io/docs/en/ignore.html

Using an extension

We can use an extension to toggle formatting like prettier on the specific page when you need it.

Formatting Toggle https://marketplace.visualstudio.com/items?itemName=tombonnike.vscode-status-bar-format-toggle