Underscore

[cssmagic]

先吐个槽：这个项目似乎也不符合 SemVer（语义化版本号）的要求。

1.8.3

2015-04-02 — Diff — Docs

• Adds an _.create method, as a slimmed down version of Object.create.
• [新增] 增加了一个 _.create 方法，相当于 Object.create 方法的精简版。
• Works around an iOS bug that can improperly cause isArrayLike to be JIT-ed. Also fixes a bug when passing 0 to isArrayLike.
• [修复] 绕过了 iOS 的一个 bug，这个 bug 会错误地导致 isArrayLike 被 JIT。同时修复了 isArrayLike 在处理 0 时的一个 bug。

  1.8.2

2015-02-22 — Diff — Docs

• Restores the previous old-Internet-Explorer edge cases changed in 1.8.1.
• [变更] 回滚了 1.8.1 版针对旧版 IE 的边缘情况所作的那个变更。
• Adds a fromIndex argument to _.contains.
• [增强] 为 _.contains 增加了一个 fromIndex 参数。

  1.8.1

2015-02-19 — Diff — Docs

• Fixes/changes some old-Internet Explorer and related edge case behavior. Test your app with Underscore 1.8.1 in an old IE and let us know how it's doing...
• [修复] 尝试修复某些旧版 IE 在某些边缘情况下的行为。请在旧版 IE 下用 Underscore 1.8.1 来测试你的应用，然后向我们反馈实际运行结果……

  1.8.0

2015-02-19 — Diff — Docs

• Added _.mapObject, which is similar to _.map, but just for the values in your object. (A real crowd pleaser.)
• [新增] 增加了 _.mapObject，它与 _.map 类似，但它用于处理对象中的值。（众望所归有木有？）
• Added _.allKeys which returns all the enumerable property names on an object.
• [新增] 增加了 _.allKeys，它会返回一个对象的所有可枚举属性的属性名。
• Reverted a 1.7.0 change where _.extend only copied "own" properties. Hopefully this will un-break you — if it breaks you again, I apologize.
• [变更] 本来我们决定从 1.7.0 开始让 _.extend 只复制对象 “自身” 的属性，但我们又回滚了这个变更。希望这个决定不会搞挂你的应用——如果搞挂了，我们很抱歉。
• Added _.extendOwn — a less-useful form of _.extend that only copies over "own" properties.
• [新增] 增加了 _.extendOwn，它是 _.extend 的一个不那么常用的形态，它只复制对象 “自身” 的属性。
• Added _.findIndex and _.findLastIndex functions, which nicely complement their twin-twins _.indexOf and _.lastIndexOf.
• [新增] 增加了 _.findIndex 和 _.findLastIndex，它们很好地实现了各自的双胞胎方法 _.indexOf 和 _.lastIndexOf。
• Added an _.isMatch predicate function that tells you if an object matches key-value properties. A kissing cousin of _.isEqual and _.matcher.
• [新增] 增加了一个 _.isMatch 判断函数，它可以告诉你一个对象是否匹配给定的属性名值对。它的功能和 _.isEqual 和 _.matcher 极为相似。
• Added an _.isError function.
• [新增] 增加了一个 _.isError 函数。
• Restored the _.unzip function as the inverse of zip. Flip-flopping. I know.
• [新增] 恢复了 1.5.1 中删除的 _.unzip 函数，相当于 zip 的反相版本。好吧，你们需要来回转换，我明白。
• _.result now takes an optional fallback value (or function that provides the fallback value).
• [增强] _.result 现在接受一个可选的 fallback 值（或者是一个可以提供 fallback 值的函数）。
• Added the _.propertyOf function generator as a mirror-world version of _.property.
• [新增] 增加了 _.propertyOf 这个函数生成器，相当于 _.property 的镜像版本。
• Deprecated _.matches. It's now known by a more harmonious name — _.matcher.
• [变更] 弃用 _.matches。它已经换了一个更和谐的新名字——_.matcher。
• Various and diverse code simplifications, changes for improved cross-platform compatibility, and edge case bug fixes.
• 简化代码，提升跨平台兼容性，修复边缘情况下的 bug。

  1.7.0

2014-08-26 — Diff — Docs

• For consistency and speed across browsers, Underscore now ignores native array methods for forEach, map, reduce, reduceRight, filter, every, some, indexOf, and lastIndexOf. "Sparse" arrays are officially dead in Underscore.
• [变更] [增强] 出于跨浏览器的一致性和性能考虑，Underscore 现在在实现 forEach、map、reduce、reduceRight、filter、every、some、indexOf 和 lastIndexOf 等方法时会忽略原生的数组方法。“稀疏” 数组在 Underscore 中已经正式灭亡。
• Added _.iteratee to customize the iterators used by collection functions. Many Underscore methods will take a string argument for easier _.property-style lookups, an object for _.where-style filtering, or a function as a custom callback.
• [新增] [增强] 增加了 _.iteratee 方法，用于自定义集合函数所需要的迭代函数。现在 Underscore 的很多方法的参数都趋于一致：可以接受一个字符串参数，以便更容易地实现 _.property 风格的查询；也可以接受一个对象参数，以实现 _.where 风格的过滤操作；还可以接受一个函数参数，作为自定义的回调函数。
• Added _.before as a counterpart to _.after.
• [新增] 增加了 _.before，从而与 _.after 相呼应。
• Added _.negate to invert the truth value of a passed-in predicate.
• [新增] 增加了 _.negate，它接受一个判断函数，并将其返回值取反。
• Added _.noop as a handy empty placeholder function.
• [新增] 增加了 _.noop，可以很方便地拿它作为占位符函数。
• _.isEmpty now works with arguments objects.
• [增强] _.isEmpty 现在可以处理 arguments 对象了。
• _.has now guards against nullish objects.
• [增强] _.has 增加了对 “空” 对象的防卫处理。
• _.omit can now take an iteratee function.
• [增强] _.omit 现在可以接受一个迭代函数作为参数了。
• _.partition is now called with index and object.
• [增强] _.partition 现在不仅可以处理数组，也可以处理对象了。
• _.matches creates a shallow clone of your object and only iterates over own properties.
• [变更] _.matches 会对你的对象生成一个浅拷贝，并且只迭代对象自身的属性。
• Aligning better with the forthcoming ECMA6 Object.assign, _.extend only iterates over the object's own properties.
• [变更] _.extend 方法将只迭代对象自身的属性，更好地向未来的 ES6 Object.assign 方法靠拢。
• Falsey guards are no longer needed in _.extend and _.defaults—if the passed in argument isn't a JavaScript object it's just returned.
• [增强] 在使用 _.extend 和 _.defaults 时，不需要操心非法输入的防卫问题了——如果传入的第一个参数不是一个 JS 对象，会直接将其返回。
• Fixed a few edge cases in _.max and _.min to handle arrays containing NaN (like strings or other objects) and Infinity and -Infinity.
• [修复] 修正了 _.max 和 _.min 的一些边缘情况，可以更好地处理包含 NaN（类似于字符串或其它对象）、Infinity 和 -Infinity 的数组。
• Override base methods like each and some and they'll be used internally by other Underscore functions too.
• [增强] 强化 each 和 some 这样的基础方法，它们将在 Underscore 内部被其它函数调用。
• The escape functions handle backticks (```), to deal with an IE ≤ 8 bug.
• [修复] escape 转义函数会处理反引号（```），以避免 IE8- 下出现问题。
• For consistency, _.union and _.difference now only work with arrays and not variadic args.
• [变更] 出于一致性考虑，_.union 和 _.difference 现在只能处理数组，而不能处理其它类型的参数。
• _.memoize exposes the cache of memoized values as a property on the returned function.
• [增强] _.memoize 会在返回的函数身上暴露一个 cache 属性，这个属性保存了已计算的所有值。
• _.pick accepts iteratee and context arguments for a more advanced callback.
• [增强] _.pick 可接受 iteratee 和 context 参数，从而提供了更高级的回调功能。
• Underscore templates no longer accept an initial data object. _.template always returns a function now.
• [变更] Underscore 的模板函数不再接受初始的 data 对象。_.template 现在总是返回一个函数。
• Optimizations and code cleanup aplenty.
• 大量优化和代码清理。

  1.6.0

2014-02-10 — Diff — Docs

• Underscore now registers itself for AMD (Require.js), Bower and Component, as well as being a CommonJS module and a regular (Java)Script. An ugliness, but perhaps a necessary one.
• Added _.partition, a way to split a collection into two lists of results — those that pass and those that fail a particular predicate.
• Added _.property, for easy creation of iterators that pull specific properties from objects. Useful in conjunction with other Underscore collection functions.
• Added _.matches, a function that will give you a predicate that can be used to tell if a given object matches a list of specified key/value properties.
• Added _.constant, as a higher-order _.identity.
• Added _.now, an optimized way to get a timestamp — used internally to speed up debounce and throttle.
• The _.partial function may now be used to partially apply any of its arguments, by passing _ wherever you'd like a placeholder variable, to be filled-in later.
• The _.each function now returns a reference to the list for chaining.
• The _.keys function now returns an empty array for non-objects instead of throwing.
• … and more miscellaneous refactoring.

（译注：1.6 和更低的版本暂不翻译了）