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Changelog History
Page 4

  • v1.17.0 Changes

    April 12, 2019

    🚀 🔗 Release Notes

  • v1.16.4 Changes

    February 03, 2019

    diff

    • 📜 API: Fix prettier.getSupportInfo() reporting babel parser for older versions of Prettier. (#5826 by @azz)

    In version 1.16.0 of Prettier, the babylon parser was renamed to babel. Unfortunately this lead to a minor breaking change: prettier.getSupportInfo('1.15.0') would report that it supported babel, not babylon, which breaks text-editor integrations. This has now been fixed.

  • v1.16.3 Changes

    January 31, 2019

    diff

    • ⚡️ TypeScript: Revert "Update typescript-estree to new package name" (#5818 by @ikatyang)

    There's an internal change introduced in Prettier 1.16.2, which updated typescript-estree to its new package name, but unfortunately it broke the output so we reverted it as a temporary workaround for now.

    <!-- prettier-ignore -->

      // Input
  export default {
    load<K, T>(k: K, t: T) {
      return {k, t};
    }
  }

  // Output (Prettier 1.16.2)
  export default {
    load(k: K, t: T) {
      return { k, t };
    }
  };

  // Output (Prettier 1.16.3)
  export default {
    load<K, T>(k: K, t: T) {
      return { k, t };
    }
  };

  • v1.16.2 Changes

    January 30, 2019

    diff

    • 👷 CLI: Fix CI detection to avoid unwanted TTY behavior (#5804 by @kachkaev)

    In Prettier 1.16.0 and 1.16.1, --list-different and --check logged every file in some CI environments, instead of just unformatted files. This unwanted behavior is now fixed.

    • HTML: Do not format non-normal whitespace as normal whitespace (#5797 by @ikatyang)

    Previously, only non-breaking whitespaces (U+00A0) are marked as non-normal whitespace, which means other non-normal whitespaces such as non-breaking narrow whitespaces (U+202F) could be formatted as normal whitespaces, which breaks the output. We now follow the spec to exclude all non-ASCII whitespace from whitespace normalization.

    (· represents a non-breaking narrow whitespace)

    <!-- prettier-ignore -->

      <!-- Input -->
  Prix·:·32·€

  <!-- Output (Prettier 1.16.1) -->
  Prix : 32 €

  <!-- Output (Prettier 1.16.2) -->
  Prix·:·32·€
    • JavaScript: Fix record type cast comment detection (#5793 by @yangsu)

    Previously, type cast comments with record types were ignored and prettier stripped the subsequent parens. Prettier 1.16.2 handles these cases correctly.

    <!-- prettier-ignore -->

      // Input
  const v = /** @type {{key: number}} */ (value);

  // Output (Prettier 1.16.1)
  const v = /** @type {{key: number}} */ value;

  // Output (Prettier 1.16.2)
  const v = /** @type {{key: number}} */ (value);

  • v1.16.1 Changes

    January 22, 2019

    diff

    • JavaScript: Do not format functions with arguments as react hooks (#5778 by @SimenB)

    The formatting added in Prettier 1.16 would format any function receiving an arrow function and an array literal to match React Hook's documentation. Prettier will now format this the same as before that change if the arrow function receives any arguments.

    <!-- prettier-ignore -->

      // Input
  ["red", "white", "blue", "black", "hotpink", "rebeccapurple"].reduce(
    (allColors, color) => {
      return allColors.concat(color);
    },
    []
  );

  // Output (Prettier 1.16.0)
  ["red", "white", "blue", "black", "hotpink", "rebeccapurple"].reduce((
    allColors,
    color
  ) => {
    return allColors.concat(color);
  }, []);

  // Output (Prettier 1.16.1)
  ["red", "white", "blue", "black", "hotpink", "rebeccapurple"].reduce(
    (allColors, color) => {
      return allColors.concat(color);
    },
    []
  );
    • JavaScript: Add necessary parentheses for decorators (#5785 by @ikatyang)

    Parentheses for decorators with nested call expressions are optional for legacy decorators but they're required for decorators in the current proposal.

    <!-- prettier-ignore -->

      // Input
  class X {
    @(computed().volatile())
    prop
  }

  // Output (Prettier 1.16.0)
  class X {
    @computed().volatile()
    prop
  }

  // Output (Prettier 1.16.1)
  class X {
    @(computed().volatile())
    prop
  }
    • TypeScript: Stable parentheses for function type in the return type of arrow function (#5790 by @ikatyang)

    There's a regression introduced in 1.16 that parentheses for function type in the return type of arrow function were kept adding/removing. Their parentheses are always printed now.

    <!-- prettier-ignore -->

      // Input
  const foo = (): (() => void) => (): void => null;
  const bar = (): () => void => (): void => null;

  // First Output (Prettier 1.16.0)
  const foo = (): () => void => (): void => null;
  const bar = (): (() => void) => (): void => null;

  // Second Output (Prettier 1.16.0)
  const foo = (): (() => void) => (): void => null;
  const bar = (): () => void => (): void => null;

  // Output (Prettier 1.16.1)
  const foo = (): (() => void) => (): void => null;
  const bar = (): (() => void) => (): void => null;

    Previously, some inline JSXs are wrongly recognized as block HTML/JSX, which causes unexpected behaviors. This issue is now fixed.

    <!-- prettier-ignore -->

      <!-- Input -->
  _foo <InlineJSX /> bar_

  <!-- Output (Prettier 1.16.0) -->
  _foo

  <InlineJSX /> bar_

  <!-- Output (Prettier 1.16.1) -->
  _foo <InlineJSX /> bar_

  • v1.16.0 Changes

    diff

    🚀 🔗 Release Notes

  • v1.15.3 Changes

    diff

    • 👍 JavaScript: support htm (#5565)
    • 👍 JavaScript: support logical assignment operator (#5489)
    • JavaScript: do not add quotes for interpolation-only attributes in html templates (#5544)
    • JavaScript: add missing parenthesis for binary in optional member (#5543)
    • 📜 JavaScript: fix a parser regression (#5530)
    • JavaScript: improve union types with leading comments (#5575)
    • 👍 TypeScript: support BigInt (#5546, #5577)
    • TypeScript: inline method decorators should stay inlined (#5444)
    • TypeScript: do not change module into namespace and break/hug their body correctly (#5551)
    • TypeScript: do not add invalid semicolon for construct in interface with // prettier-ignore (#5469)
    • HTML: do not touch comments (#5525)
    • HTML: preserve bogus comments <! ... >/<? ... > (#5565)
    • 👍 HTML: support IE conditional start/end comment (#5470)
    • HTML: do not add extra indentation for js template in <script> (#5527)
    • HTML: leading spaces for the first interpolation in <textarea> are sensitive (#5468)
    • HTML: preserve content for element in <pre> correctly (#5473)
    • HTML: correct column for error code frame (#5553)
    • 👍 Angular: support interpolation in attributes (#5573)
    • 🖨 Angular: do not print colon for then and else in *ngIf (#5542)
    • Angular/Vue: do not normalize tag/attribute names (#5526, #5549)
    • Vue: preserve custom block (#5458)
    • 🚚 Vue: remove unnecessary semicolon and preserve necessary semicolon for single expression in event bindings (#5519)
    • Vue: group slot-scope correctly (#5563)
    • Markdown: do not trim content in inline-math (#5485)
    • Markdown: add more category to CJK regex (#5480)
    • 🐎 SCSS: update parser for performance improvements (#5481)
    • YAML: preserve the first document head end marker --- (#5502)
    • API: resolve ignored field correctly in .getFileInfo() with absolute filePath (#5570)
    • API/CLI: fix a bug that caches for .js config files did not respect .clearConfigCache() (#5558)
    • API/CLI: ignore unset in .editorconfig (#5550)
    • CLI: report status code 0 for --list-different + --write (#5512)
    • 💻 Standalone: fix a regression for browser compatibility (#5560)

  • v1.15.2 Changes

    diff

    • CLI: allow flag overriding (#5390)
    • ✅ JavaScript: do not apply test call formatting to arrow function without body (#5366)
    • 💅 JavaScript: do not duplicate comments in styled-components (#5416)
    • JavaScript: do not indent comments behind variable declarations (#5434)
    • JavaScript: inline property decorator should stay inline (#5364, #5423)
    • JavaScript: treat createSelector as function composition (#5430)
    • 🚚 Flow: do not move flow comment for function argument to its body (#5435)
    • Flow: force-break interface body to be consistent with TypeScript interface (#5432)
    • 🚚 Flow/TypeScript: remove extra indentation for extends (#5432)
    • TypeScript: distinguish module and namespace correctly (#5432)
    • HTML: handle CRLF correctly (#5393)
    • HTML: handle <pre> with interpolation (#5400)
    • HTML: preserve content for <template> with unknown lang (#5388)
    • HTML: preserve incomplete IE conditional comments (#5429)
    • HTML: preserve unterminated IE conditional comments (#5424)
    • HTML: treat capital element as custom element (#5395)
    • Angular: add missing parens for pipe in ternary (#5397)
    • 🖨 Angular: correctly print unary expression with operator + (#5405)
    • Angular: correctly handle parens (#5387)
    • Angular/Vue: whitespaces between interpolation and text are sensitive (#5396)
    • Vue: do not add invalid semicolon for v-on attribute value (#5418)
    • SCSS: do not crash on grid value (#5394)
    • Markdown: handle CRLF correctly (#5414)
    • Markdown: identify CJK correctly (#5402)
    • MDX: treat JSX code block same as in Markdown (#5391)

  • v1.15.1 Changes

    diff

    • Markdown: do not keep increasing backslashes for dollar sign (#5358)

  • v1.15.0 Changes

    diff

    🚀 🔗 Release Notes