lodash

webpack的卸载 webpack4.x开始官方文档是说要单独安装webpack-cli所以如果是用4.+就需要卸载cli //删除全局webpack-cli 卸载uninstall可以简写成un，全局-g的完整写法是--global npm uninstall -g webpack-cli //删除本地（局部）webpack-cli npm uninstall webpack-cli //删除全局webpack npm uninstall -g webpack //删除本地webpack npm un webpack webpack的安装与使用 在空文件夹pratice下执行： //全局安装，默认最新版本，可以使用@指定版本 npm install webpack -g //可以使用cnpm淘宝镜像，这样速度更快 npm install -g cnpm --registry=https://registry.npm.taobao.org //用cnpm来安装。速度较快 cnpm install webpack -g //在3版本及之前安装webpack的时候就一同把webpack-cli也下载了，但是webpack4开始需要手动安装webpack-cli //安装webpack-cli cnpm install webpack-cli -g //查看版本号 webpack -v

I would like to know why lodash doesn't sort array of dates in string format as compared with plain javascript sort() . Is it expected behaviour or a bug? array = ["2014-11-11", "2014-11-12", null, "2014-11-01", null, null, "2014-11-05"] _.sortBy(array); // ["2014-11-11", "2014-11-12", null, "2014-11-01", null, null, "2014-11-05"] _.sortBy(array, function(value) {return new Date(value);}); // [null, null, null, "2014-11-01", "2014-11-05", "2014-11-11", "2014-11-12"] array.sort() // ["2014-11-01", "2014-11-05", "2014-11-11", "2014-11-12", null, null, null] Version used: Lo-Dash v2.4.1 – Modern

This is a question similar to How to remove undefined and null values from an object using lodash? . However, the solutions proposed there do not conserve the constructor. In addition to that, I want to only delete those keys which starts, say with '_'. Here is what I am looking for, and can't seem to manage to get from lodash : Input : new Cons({key1 : 'value1', key2 : {key21 : 'value21', _key22: undefined}, key3: undefined, _key4 : undefined}) Output : {key1 : 'value1', key2 : {key21 : 'value21'}, key3: undefined} where for example function Cons(obj){_.extend(this, obj)} I have a solution

Is there a way in lodash to check if a strings contains one of the values from an array? For example: var text = 'this is some sample text'; var values = ['sample', 'anything']; _.contains(text, values); // should be true var values = ['nope', 'no']; _.contains(text, values); // should be false Another solution, probably more efficient than looking for every values, can be to create a regular expression from the values. While iterating through each possible values will imply multiple parsing of the text, with a regular expression, only one is sufficient. function multiIncludes(text, values){

plv8 是postgres 的一个比较强大的插件，社区有人基于babel，browserify 实现了一个方便的require 模块加载 实际上官方也有介绍过了类似的基于数据库存储js，然后通过eval 动态加载代码，以下是一个简单的试用 环境准备 docker-compose 文件 version: '3.6' services: postgres: image: dalongrong/plv8:2.3.12 ports: - "5432:5432" environment: - "POSTGRES_PASSWORD=dalong" graphql-engine: image: hasura/graphql-engine:v1.0.0-beta.9 ports: - "8080:8080" depends_on: - "postgres" environment: HASURA_GRAPHQL_DATABASE_URL: postgres://postgres:dalong@postgres:5432/postgres HASURA_GRAPHQL_ENABLE_CONSOLE: "true" # set to "false" to disable console HASURA_GRAPHQL_ENABLED_LOG_TYPES: startup, http-log,

Looking at the documentation for ES6 Object.assign and Lodash _.assign it looks like these function in exactly the same way. Is that a correct understanding? Or am I missing something? Depends on the browser. Per the lodash docs: Made _.assign use built-in Object.assign when available. You can go here for browser support: Basically, IE doesn't have support so lodash's code is used in that case MDN Docs on Object.assign 来源： https://stackoverflow.com/questions/37123425/object-assign-vs-lodash-assign

I am new to loadash, I am trying to learn good ways to manipulate java script object. Is there a equivalent loadash method for : Object.keys({ "tab1": "1" , tab2: "2"})[0]; Object.keys({ "tab1": "1" , tab2: "2"})[2]; to get list values? And also if there are easy and good ways to use lodash and any articles that I can go through. _.keys should do the trick. _.keys(object) Creates an array of the own enumerable property names of object . Example: console.log(_.keys({ "tab1": "1" , tab2: "2"})); console.log(Object.keys({ "tab1": "1" , tab2: "2"})); // Outputs: // ["tab1", "tab2"] // ["tab1",

Lets say I have an object filter: { "ID": false, "Name": true, "Role": false, "Sector": true, "Code": false } I want to set all keys to false (to reset them). What's the best way to do this, I'd like to avoid looping with foreach and stuff. Any neat one liner? Using lodash, mapValues is a graceful, loop-free way: filter = { "ID": false, "Name": true, "Role": false, "Sector": true, "Code": false }; filter = _.mapValues(filter, () => false); If you want to do this with Underscore.js, there is an equivalent, but with a slightly different name: filter = _.mapObject(filter, () => false); In either