Function union

union<input, const patterns>(...patterns): Chainable<OrP<input, patterns>>
P.union(...patterns) returns a pattern which matches if at least one of the patterns provided in parameter match the input.

Read the documentation for P.union on GitHub
Type Parameters
- input
- const patterns extends readonly [Pattern<input>, Pattern<input>]
Parameters
- Rest ...patterns: patterns
Returns Chainable<OrP<input, patterns>>
Example
```
match(value)
  .with(
    { type: P.union('a', 'b', 'c') },
    ({ type }) => 'will match { type: "a" | "b" | "c" }'
  )
```
- Defined in node_modules/ts-pattern/dist/patterns.d.ts:152