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@dependabot dependabot bot commented on behalf of github Dec 22, 2025

Bumps esbuild from 0.19.8 to 0.27.2.

Release notes

Sourced from esbuild's releases.

v0.27.2

  • Allow import path specifiers starting with #/ (#4361)

    Previously the specification for package.json disallowed import path specifiers starting with #/, but this restriction has recently been relaxed and support for it is being added across the JavaScript ecosystem. One use case is using it for a wildcard pattern such as mapping #/* to ./src/* (previously you had to use another character such as #_* instead, which was more confusing). There is some more context in nodejs/node#49182.

    This change was contributed by @​hybrist.

  • Automatically add the -webkit-mask prefix (#4357, #4358)

    This release automatically adds the -webkit- vendor prefix for the mask CSS shorthand property:

    /* Original code */
    main {
      mask: url(x.png) center/5rem no-repeat
    }
    /* Old output (with --target=chrome110) */
    main {
    mask: url(x.png) center/5rem no-repeat;
    }
    /* New output (with --target=chrome110) */
    main {
    -webkit-mask: url(x.png) center/5rem no-repeat;
    mask: url(x.png) center/5rem no-repeat;
    }

    This change was contributed by @​BPJEnnova.

  • Additional minification of switch statements (#4176, #4359)

    This release contains additional minification patterns for reducing switch statements. Here is an example:

    // Original code
    switch (x) {
      case 0:
        foo()
        break
      case 1:
      default:
        bar()
    }
    // Old output (with --minify)
    switch(x){case 0:foo();break;case 1:default:bar()}
    // New output (with --minify)

... (truncated)

Changelog

Sourced from esbuild's changelog.

Changelog: 2023

This changelog documents all esbuild versions published in the year 2023 (versions 0.16.13 through 0.19.11).

0.19.11

  • Fix TypeScript-specific class transform edge case (#3559)

    The previous release introduced an optimization that avoided transforming super() in the class constructor for TypeScript code compiled with useDefineForClassFields set to false if all class instance fields have no initializers. The rationale was that in this case, all class instance fields are omitted in the output so no changes to the constructor are needed. However, if all of this is the case and there are #private instance fields with initializers, those private instance field initializers were still being moved into the constructor. This was problematic because they were being inserted before the call to super() (since super() is now no longer transformed in that case). This release introduces an additional optimization that avoids moving the private instance field initializers into the constructor in this edge case, which generates smaller code, matches the TypeScript compiler's output more closely, and avoids this bug:

    // Original code
    class Foo extends Bar {
      #private = 1;
      public: any;
      constructor() {
        super();
      }
    }
    // Old output (with esbuild v0.19.9)
    class Foo extends Bar {
    constructor() {
    super();
    this.#private = 1;
    }
    #private;
    }
    // Old output (with esbuild v0.19.10)
    class Foo extends Bar {
    constructor() {
    this.#private = 1;
    super();
    }
    #private;
    }
    // New output
    class Foo extends Bar {
    #private = 1;
    constructor() {
    super();
    }
    }

  • Minifier: allow reording a primitive past a side-effect (#3568)

    The minifier previously allowed reordering a side-effect past a primitive, but didn't handle the case of reordering a primitive past a side-effect. This additional case is now handled:

... (truncated)

Commits
  • cd83297 publish 0.27.2 to npm
  • 2759721 additional tests for switch with break
  • fd2b4b3 update release notes
  • c8d93a7 fix #4357: -webkit- prefix for mask shorthand (#4358)
  • 92ff12c compat table: update @types/node
  • a35eceb compat table: fix a type error with the new types
  • f598984 fix make compat-table to install dependencies
  • f7f6df0 release notes for #4361
  • 6f8ec15 fix: allow subpath imports that start with #/ (#4361)
  • f7ae61f minify some switch statements to if-else statement
  • Additional commits viewable in compare view
Maintainer changes

This version was pushed to npm by [GitHub Actions](https://www.npmjs.com/~GitHub Actions), a new releaser for esbuild since your current version.


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Bumps [esbuild](https://github.com/evanw/esbuild) from 0.19.8 to 0.27.2.
- [Release notes](https://github.com/evanw/esbuild/releases)
- [Changelog](https://github.com/evanw/esbuild/blob/main/CHANGELOG-2023.md)
- [Commits](evanw/esbuild@v0.19.8...v0.27.2)

---
updated-dependencies:
- dependency-name: esbuild
  dependency-version: 0.27.2
  dependency-type: direct:development
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <[email protected]>
@dependabot dependabot bot added dependencies Pull requests that update a dependency file javascript Pull requests that update javascript code labels Dec 22, 2025
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