上个周末花点时间根据之前看源码的理解自己用 ES6 实现了一个 eventemitter8，然后也发布到 npm 上了，让我比较意外的是才发布两天在没有 readme 介绍，没有任何宣传的情况下居然有45个下载，我很好奇都是谁下载的，会不会用。我花了不少时间半抄半原创的一个 JavaScript 时间处理库 now.js (npm 传送门：now.js) ，在我...

Filters out the elements of an array, that have one of the specified values. Use Array.filter() to create an array excluding(using !Array.includes()) all given values. {代码...}

Returns all elements in an array except for the first one. Return Array.slice(1) if the array's length is more than 1, otherwise, return the whole array. {代码...}

Gets n random elements at unique keys from array up to the size of array. Shuffle the array using the Fisher-Yates algorithm. Use Array.slice() to get the first n elements. Omit the second argument, n to get only one element at random from the array. {代码...}

Returns the n maximum elements from the provided array. If n is greater than or equal to the provided array's length, then return the original array(sorted in descending order). Use Array.sort() combined with the spread operator (...) to create a shallow clone of the array and sort it in descendi...

Flattens an array up to the specified depth. Use recursion, decrementing depth by 1 for each level of depth. Use Array.reduce() and Array.concat() to merge elements or arrays. Base case, for depth equal to 1 stops recursion. Omit the second element, depth to flatten only to a depth of 1 (single f...

Returns the difference between two arrays. Create a Set from b, then use Array.filter() on a to only keep values not contained in b. {代码...}

有意思 最近很火的github上的库30-seconds-of-code，特别有意思，代码也很优雅。 能学es6 自己翻译，能学英语 代码很美，很优雅，美即正义 函数式表达，享受 arrayGcd Calculates the greatest common denominator (gcd) of an array of numbers. Use Array.reduce() and the gcd formula (uses recursion) to calculate...

迷你版即0.3.0版。0.2.0版没加新功能，只增加eadme内容和修正package.json上的一些错误。0.3.0同样没加新功能，但是却是非常重要的。这个版本国际化默认只支持英文和中文。初始化是英文。如果想支持全部118种语言，需要引入nowjs.locale.js或者压缩版nowjs.locale.min.js。

因为学习underscore源码的过程中，感觉无聊。想写个库调剂一下，当做学习的机会。我是照着underscore源码一个个commit敲的.代码放在这里，刚看了一眼，有668次commit，两个月，敲到了1.4.3版本，可能还没到一半。敲久了有点无聊。想动手写一个库作为调剂。碰巧之前做防健忘短信提醒的时候是用go写的后台，用了gorm，在作...