v3.4.1

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diff

Remove unnecessary parentheses around assignment in v-on (#​16887 by @​fisker)

<!-- Input -->
<template>
  <button @&#8203;click="foo += 2">Click</button>
</template>

<!-- Prettier 3.4.0 -->
<template>
  <button @&#8203;click="(foo += 2)">Click</button>
</template>

<!-- Prettier 3.4.1 -->
<template>
  <button @&#8203;click="foo += 2">Click</button>
</template>

v3.4.0

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diff

🔗 Release Notes

v3.3.3

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Add parentheses for nullish coalescing in ternary (#​16391 by @​cdignam-segment)

This change adds clarity to operator precedence.

// Input
foo ? bar ?? foo : baz;
foo ?? bar ? a : b;
a ? b : foo ?? bar;

// Prettier 3.3.2
foo ? bar ?? foo : baz;
foo ?? bar ? a : b;
a ? b : foo ?? bar;

// Prettier 3.3.3
foo ? (bar ?? foo) : baz;
(foo ?? bar) ? a : b;
a ? b : (foo ?? bar);

Add parentheses for decorator expressions (#​16458 by @​y-schneider)

Prevent parentheses around member expressions or tagged template literals from being removed to follow the stricter parsing rules of TypeScript 5.5.

// Input
@​(foo`tagged template`)
class X {}

// Prettier 3.3.2
@​foo`tagged template`
class X {}

// Prettier 3.3.3
@​(foo`tagged template`)
class X {}

Support @let declaration syntax (#​16474 by @​sosukesuzuki)

Adds support for Angular v18 @let declaration syntax.

Please see the following code example. The @let declaration allows you to define local variables within the template:

@​let name = 'Frodo';

<h1>Dashboard for {{name}}</h1>
Hello, {{name}}

For more details, please refer to the excellent blog post by the Angular Team: Introducing @​let in Angular.

We also appreciate the Angular Team for kindly answering our questions to implement this feature.

v3.3.2

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Fix handlebars path expressions starts with @ (#​16358 by @​Princeyadav05)

{{! Input }}
<div>{{@&#8203;x.y.z}}</div>

{{! Prettier 3.3.1 }}
<div>{{@&#8203;x}}</div>

{{! Prettier 3.3.2 }}
<div>{{@&#8203;x.y.z}}</div>

v3.3.1

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Preserve empty lines in front matter (#​16347 by @​fisker)

<!-- Input -->
---
foo:
  - bar1

  - bar2

  - bar3
---
Markdown

<!-- Prettier 3.3.0 -->

---
foo:
  - bar1
  - bar2
  - bar3
---

Markdown

<!-- Prettier 3.3.1 -->
---
foo:
  - bar1

  - bar2

  - bar3
---

Markdown

Preserve explicit language in front matter (#​16348 by @​fisker)

<!-- Input -->
---yaml
title: Hello
slug: home
---

<!-- Prettier 3.3.0 -->
---
title: Hello
slug: home
---

<!-- Prettier 3.3.1 -->
---yaml
title: Hello
slug: home
---

Avoid line breaks in import attributes (#​16349 by @​fisker)

// Input
import something from "./some-very-very-very-very-very-very-very-very-long-path.json" with { type: "json" };

// Prettier 3.3.0
import something from "./some-very-very-very-very-very-very-very-very-long-path.json" with { type:
  "json" };

// Prettier 3.3.1
import something from "./some-very-very-very-very-very-very-very-very-long-path.json" with { type: "json" };