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hash-it CHANGELOG

5.0.0

Breaking changes

  • Remove autocurrying of hash.is methods
  • Remove transpiled builds in favor of rollup distributed files (deep-linking will no longer work)

Enhancements

  • Codebase rewritten in TypeScript
  • Added BigInt support

4.1.0

  • Add TypeScript definitions
  • Significant speed improvements

4.0.5

  • Fix issues related to string encoding and collisions #23

4.0.4

  • Improve speed of complex objects (Objects, Arrays, Maps, Sets)
  • Fix security issue with old version of webpack-dev-server

4.0.3

  • Upgrade to use babel 7 for builds

4.0.2

  • Fix #18 - IE11 not allowing global toString to be used, instead using Object.prototype.toString (thanks @JorgenEvens)

4.0.1

  • Remove unused values from publish

4.0.0

Rewrite! Lots of changes under-the-hood for a much more consistent hash, and circular object handling out of the box.

BREAKING CHANGES

  • isEmpty, isEqual,isNull, and isUndefined have been removed (all can be reproduced with new is and is.all functions)
    • hash.isNull => hash.is(null)
    • hash.isUndefined => hash.is(undefined)
    • hash.isEqual => hash.is.all
    • hash.isEmpty => (object) => hash.is.any(object, undefined, null, '', 0, [], {}, new Map(), new Set())
  • Error hashes now based on error.stack instead of error.message

ENHANCEMENTS

  • Circular objects are now handled out of the box, thanks to fast-stringify
  • Collision rates are near-zero (previously used traditional DJB2, which has small collision rates)
  • Better ArrayBuffer support with the use of Buffer.from when supported
  • SVG elements, DocumentFragments, and Events are now supported
  • is partial-application function allows for easy creation of any type of isEqual comparison method
  • is.any performs the same multiple-object check that is.all does, but only checks if one of the other objects is equal
  • is.not performs the same comparison that is does, but checks for non-equality

FIXES

  • Object / Map / Set no longer returns different hashes based on order of key addition
  • hash.isEqual will no longer fail if nothing is passed

3.1.2

  • Remove extraneous toString call (performance)

3.1.1

  • Improve hash uniqueness for HTML elements

3.1.0

  • Add support for Generator (not just GeneratorFunction)
  • Streamline typeof- vs toString-driven handling for improved speed for most types

3.0.0

  • Improve speed (2-4x faster depending on type)
  • Smaller footprint (~25% reduction)
  • Improve hash accuracy for functions (hash now includes function body)
  • Fix issue where stack remained in memory after hash was built
  • Add ES transpilation for module-ready build tools

BREAKING CHANGES

  • If using CommonJS, you need to specify require('hash-it').default instead of just require('hash-it')
  • Hashes themselves may have changed (especially for circular objects)
  • Removed isRecursive method on hashIt object (which was wrongly named to begin with)
    • To specifically handle circular objects (which is what it really did), pass true as the second parameter to hashIt

2.1.2

  • Move up isNull check in replacer (improve performance of more likely use-case)

2.1.1

  • Create isNull utility instead of checking strict equality in multiple places

2.1.0

  • Overall speed improvement by an average of 18.74% (35.27% improvement on complex objects)

2.0.1

  • More speed improvements

2.0.0

  • Use JSON.stringify with replacer as default, without try/catch
  • Move use of try/catch with fallback to prune to new hashIt.withRecursion method (only necessary for deeply-recursive objects like window)
  • Reorder switch statement for commonality of use cases
  • Leverage typeof in switch statements when possible for performance

1.3.1

  • Add optimize-js plugin for performance in script version

1.3.0

  • Add hashIt.isUndefined, hashIt.isNull, and hashIt.isEmpty methods
  • Reorder switch statements in replacer and getValueForStringification to reflect most likely to least likely (improves performance a touch)
  • Remove "Number" from number stringification
  • Leverage prependTypeToString whereever possible
  • Include Arguments object class

1.2.1

  • Calculation of Math hashCode now uses properties
  • Fix README

1.2.0

  • Add hashIt.isEqual method to test for equality
  • Prepend all values not string or number with object class name to help avoid collision with equivalent string values

1.1.0

  • Add support for a variety of more object types
  • Fix replacer not using same stringifier for int arrays

1.0.0

  • Initial release