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prettier v1.17.1 Release Notes

Release Date: 2019-05-13 // almost 5 years ago

  • diff

    • Range: Fix ranged formatting not using the correct line width (#6050 by @mathieulj)

    <!-- prettier-ignore -->

      // Input
  function f() {
    if (true) {
      call("this line is 79 chars", "long", "it should", "stay as single line");
    }
  }

  // Output (Prettier 1.17.0 run with --range-start 30 --range-end 110)
  function f() {
    if (true) {
      call(
        "this line is 79 chars",
        "long",
        "it should",
        "stay as single line"
      );
    }
  }

  // Output (Prettier 1.17.0 run without range)
  function f() {
    if (true) {
      call("this line is 79 chars", "long", "it should", "stay as single line");
    }
  }

  // Output (Prettier 1.17.1 with and without range)
  function f() {
    if (true) {
      call("this line is 79 chars", "long", "it should", "stay as single line");
    }
  }
    • JavaScript: Fix closure compiler typecasts ([#5947] by @jridgewell)

    If a closing parenthesis follows after a typecast in an inner expression, the typecast would wrap everything to the that following parenthesis.

    <!-- prettier-ignore -->

      // Input
  test(/** @type {!Array} */(arrOrString).length);
  test(/** @type {!Array} */((arrOrString)).length + 1);

  // Output (Prettier 1.17.0)
  test(/** @type {!Array} */ (arrOrString.length));
  test(/** @type {!Array} */ (arrOrString.length + 1));

  // Output (Prettier 1.17.1)
  test(/** @type {!Array} */ (arrOrString).length);
  test(/** @type {!Array} */ (arrOrString).length + 1);
    • JavaScript: respect parenthesis around optional chaining before await (#6087 by @evilebottnawi)

    <!-- prettier-ignore -->

      // Input
  async function myFunction() {
    var x = (await foo.bar.blah)?.hi;
  }

  // Output (Prettier 1.17.0)
  async function myFunction() {
    var x = await foo.bar.blah?.hi;
  }

  // Output (Prettier 1.17.1)
  async function myFunction() {
    var x = (await foo.bar.blah)?.hi;
  }
    • 🔀 Handlebars: Fix {{else}}{{#if}} into {{else if}} merging (#6080 by @dcyriller)

    <!-- prettier-ignore -->

      // Input
  {{#if a}}
    a
  {{else}}
    {{#if c}}
      c
    {{/if}}
    e
  {{/if}}

  // Output (Prettier 1.17.0)
  {{#if a}}
    a
  {{else if c}}
    c
  e
  {{/if}}

  // Output (Prettier 1.17.1)
  Code Sample
  {{#if a}}
    a
  {{else}}
    {{#if c}}
      c
    {{/if}}
    e
  {{/if}}
    • JavaScript: Improved multiline closure compiler typecast comment detection (#6070 by @yangsu)

    Previously, multiline closure compiler typecast comments with lines that start with * weren't flagged correctly and the subsequent parenthesis were stripped. Prettier 1.17.1 fixes this issue.

    <!-- prettier-ignore -->

      // Input
  const style =/**
   * @type {{
   *   width: number,
   * }}
  */({
    width,
  });

  // Output (Prettier 1.17.0)
  const style =/**
   * @type {{
   *   width: number,
   * }}
  */ {
    width,
  };

  // Output (Prettier 1.17.1)
  const style =/**
   * @type {{
   *   width: number,
   * }}
  */({
    width,
  });