keep-aligned 
Keep specific symbols within a block of code are aligned vertically.
Triggers 
- /// keep-aligned <symbols>
- // @keep-aligned <symbols>
Examples 
typescript
// @keep-aligned , , ,
export const matrix = [
  1, 0, 0,
  0.866, -0.5, 0,
  0.5, 0.866, 42,
]Will be converted to:
typescript
// @keep-aligned , , ,
export const matrix = [
  1    , 0    , 0 ,
  0.866, -0.5 , 0 ,
  0.5  , 0.866, 42,
]Repeat Mode 
For the example above where , is the only repeating symbol for alignment, keep-aligned* could be used instead to indicate a repeating pattern:
typescript
// @keep-aligned* ,
export const matrix = [
  1, 0, 0,
  0.866, -0.5, 0,
  0.5, 0.866, 42,
]Will produce the same result.
TIP
This rule does not work well with other spacing rules, namely style/no-multi-spaces, style/comma-spacing, antfu/consistent-list-newline were disabled for the example above to work. Consider adding /* eslint-disable */ to specific ESLint rules for lines affected by this command.
typescript
/* eslint-disable style/no-multi-spaces, style/comma-spacing, antfu/consistent-list-newline */
// @keep-aligned , , ,
export const matrix = [
  1    , 0    , 0 ,
  0.866, -0.5 , 0 ,
  0.5  , 0.866, 42,
]
/* eslint-enable style/no-multi-spaces, style/comma-spacing, antfu/consistent-list-newline */