Link: https://lodash.com/docs#memoize Example: .service('UserPresenter', function(UserConstants){ var typeFromId = _.memoize(function(typeId){ var obj = _.findWhere(UserConstants.types, { value: typeId}); return obj ? obj.display : ''; }); return { f…

This lesson shows how to refactor your old loops into using a simpler and more powerful lodash-style. We will start by looking at how many people traditionally write JavaScript for loops and then talk about the alternate style and benefits that Lodas…

目录 _.memoize(func, [resolver]) 举例1: 获取J(1000000)的值 举例2: 斐波那契数列F(1000)的值 _.memoize(func, [resolver]) 创建一个会缓存 func 结果的函数. 如果提供了 resolver ,就用 resolver 的返回值作为 key 缓存函数的结果. 默认情况下用第一个参数作为缓存的 key. func 在调用时 this 会绑定在缓存函数上. 注意: 缓存会暴露在缓存函数的 cache 上. 它是可以定制的,只…

sortBy: var collection = ['John', 'Petteri', 'Antti', 'Joonas', 'Zhentian']; var sorted = _.sortBy(collection); //[ 'Antti', 'John', 'Joonas', 'Petteri', 'Zhentian' ] var collection = ['John', 'Petteri', 'Antti', 'Joonas', 'Zhentian']; var sorted = _…

1   _.compact用法   _.compact([0, 1, false, 2, '', 3,'mm']); var test = _.compact([-1,0, 1, false, 2, '', 3,'jj']); console.log(test); ----1,1,2,3,jj//输出 没有 0 false 空格 2_.different用法 var test = _.difference([1, 2, 3, 4, 5], [5, 2, 10]); console.log(tes…

轉載請一定註明地址:http://www.cnblogs.com/surge/p/5983024.html 謝謝! 濤叔是在mac環境下進行的,涉及android環境的配置不保證成功. 少废话,跟着濤叔一步步做就可以了. 1. 安裝Node.js 查看现有版本 libotaodeMacBook-Pro:~ libotao$ node -v -bash: node: command not found 没有安装,现在安装.下載地址 http://nodejs.org libotaodeMacBoo…

The Exceptional Performance team has identified a number of best practices for making web pages fast. The list includes 35 best practices divided into 7 categories. Looking to optimize your mobile app experience? Check out Flurry Analytics. Filter by…

翻译原文链接:https://blog.vixlet.com/react-at-light-speed-78cd172a6411 个人翻译小站链接:http://www.zcfy.cc/article/react-at-light-speed-vixlet-2920.html 在过去的几年里, 我们Vixlet (http://www.vixlet.com) 的web团队,着手了一项激动人心的项目,将我们的整个web应用迁往React+Redux的建设.对于我们整个团队来说 这是一个不断增长的机…

npm install 初夏下面问题: 0 info it worked if it ends with ok1 verbose cli [ '/home/linux_ubuntu164/tools/programFile/node-v9.11.1-linux-x64/bin/node',1 verbose cli '/usr/local/bin/npm',1 verbose cli 'install' ]2 info using npm@5.6.03 info using node@v9.11…

原文:http://developer.yahoo.com/performance/rules.html 提升网站加载速度的一些优化技巧,大部分在前端层面. 不知道是多久以前写的,看起来有些已经过时了? ==== The Exceptional Performance team has identified a number of best practices for making web pages fast. The list includes 35 best practices divid…