prettier/CHANGELOG.unreleased.md

TypeScript: Print comment following a JSX element with generic (#6209 by @duailibe)

Previous versions would not print this comment, this has been fixed in this version.

// Input
const comp = (
  <Foo<number>
    // This comment goes missing
    value={4}
  >
    Test
  </Foo>
);

// Output (Prettier stable)
const comp = <Foo<number> value={4}>Test</Foo>;

// Output (Prettier master)
const comp = (
  <Foo<number>
    // This comment goes missing
    value={4}
  >
    Test
  </Foo>
);

Handlebars: Avoid adding unwanted line breaks between text and mustaches (#6186 by @gavinjoyce)

Previously, Prettier added line breaks between text and mustaches which resulted in unwanted whitespace in rendered output.

// Input
<p>Your username is @{{name}}</p>
<p>Hi {{firstName}} {{lastName}}</p>

// Output (Prettier stable)
<p>
  Your username is @
  {{name}}
</p>
<p>
  Hi
  {{firstName}}
  {{lastName}}
</p>

// Output (Prettier master)
<p>
  Your username is @{{name}}
</p>
<p>
  Hi {{firstName}} {{lastName}}
</p>

Handlebars: Improve comment formatting (#6206 by @gavinjoyce)

Previously, Prettier would sometimes ignore whitespace when formatting comments.

// Input
<div>
  {{! Foo }}
  {{#if @foo}}
    Foo
  {{/if}}

  {{! Bar }}
  {{#if @bar}}
    Bar
  {{/if}}
</div>

// Output (Prettier stable)
<div>
  {{! Foo }}
  {{#if @foo}}
    Foo
  {{/if}}{{! Bar }}{{#if @bar}}
    Bar
  {{/if}}
</div>

// Output (Prettier master)
<div>
  {{! Foo }}
  {{#if @foo}}
    Foo
  {{/if}}
  {{! Bar }}
  {{#if @bar}}
    Bar
  {{/if}}
</div>

JavaScript: Keep unary expressions parentheses with comments (#6217 by @sosukesuzuki)

Previously, Prettier removes parentheses enclose unary expressions. This change modify to keep it when the expression has comments.

// Input
!(
  /* foo */
  foo
);
!(
  foo // foo
);

// Output (Prettier stable)
!/* foo */
foo;
!foo; // foo

// Output (Prettier master)
!(/* foo */ foo);
!(
  foo // foo
);

Handlebars: Improve comment formatting (#6234 by @gavinjoyce)

Previously, Prettier would incorrectly decode HTML entiites.

// Input
<p>
  Some escaped characters: &lt; &gt; &amp;
</p>

// Output (Prettier stable)
<p>
  Some escaped characters: < > &
</p>

// Output (Prettier master)
<p>
  Some escaped characters: &lt; &gt; &amp;
</p>