Is there a TSLint rule that forbids the prefixed type assertion syntax?

Question

Type assertion can be described in two ways:

1. Prefixed

<Foo>{ foo: 'bar' };

2. Suffixed

{ foo: 'bar' } as Foo;

Are there any TSLint rules that forbid the former and enforce the latter?

Answer 1

TSLint has a builtin rule for this very thing: no-angle-bracket-type-assertion

To enable, add the rule to your tslint.json as follows

{
  "rules": {
    "no-angle-bracket-type-assertion": true
  }
}

There is an auto-fixer for the rule.