lodash

lodash orderby with null and real values not ordering correctly

由 时光怂恿深爱的人放手 提交于 2019-12-01 03:28:10
I have an Angular 2 typescript application that is using lodash for various things. I have an array of objects that I am ordering using a property in the object... _.orderBy(this.myArray, ['propertyName'], ['desc']); This works well however my problem is that sometimes 'propertyName' can have a null value. These are ordered as the first item in a descending list, the highest real values then follow. I want to make these null values appear last in the descending ordering. I understand why the nulls come first. Does anyone know how to approach this? In _.orderBy() iteratees use a method instead

小程序使用 lodash 的问题

由 两盒软妹~` 提交于 2019-12-01 02:48:56
import _ from 'lodash' 报错： vendor.js:11874 Uncaught TypeError: Cannot read property 'prototype' of undefined at runInContext (vendor.js:11874) at Object.<anonymous> (vendor.js:27538) at Object.<anonymous> (vendor.js:27566) at Object.<anonymous> (vendor.js:27568) at __webpack_require__ (manifest.js:59) at Object._ (app.js? [sm]:15) at __webpack_require__ (manifest.js:59) at Object.webpackJsonpCallback [as webpackJsonpMpvue] (manifest.js:30) at app.js? [sm]:3 at require (WAService.js:1) 报错分析见 这里 我不想修改 lodash.js 文件，于是在 import 'lodash' 之前先执行下面的代码： global.Object = Object global.Array = Array global

Sort array of JavaScript objects by property value [duplicate]

由 给你一囗甜甜゛ 提交于 2019-12-01 02:39:27
This question already has an answer here: Sorting nested arrays of objects by date 3 answers I have an array of JavaScript objects. My array is defined like this: var myObjects = [ { id: '1', username: 'bill.jones', active: true, createdon: '03/29/2014' }, { id: '2', username: 'woohoo', active: true, createdon: '03/28/2014' }, { id: '3', username: 'someuser', active: true, createdon: '03/30/2014' } ]; This array is actually dynamically populated. Still, I need to sort the results by the createdon value in ascending order. To do that, I'm trying to use lodash. The createdon value represents a

npm WARN deprecated lodash@2.4.2: lodash@<3.0.0 is no longer maintained

由 孤街醉人 提交于 2019-12-01 02:16:55
I'm getting an error when using npm to install grunt-cli globally. It's related to lodash: npm WARN deprecated lodash@2.4.2: lodash@<3.0.0 is no longer maintained. Upgrade to lodash@^3.0.0. Here are the versions i'm using, and the list of global packages installed. node: v5.1.0 npm: v3.5.0 npm list -g: http://pastebin.com/NuJU3bY0 I've attempted to install the latest version of lodash (v3.10.1) globally, but I still got the error again after uninstalling my grunt-cli global package, and then re-installing my global package. Below is the installation log: sudo npm install lodash -g /usr/local

How should the lodash flow function be typed in typescript?

由 我们两清 提交于 2019-12-01 01:58:52
问题 lodash.flow combines two or more functions. lodash.flow(double, addTwo) would return a function the would double and add two. How should this function be typed in typescript (the current definition just returns Function)? declare function flow<In, Intermediate, Out>(f1: (a1: In) => Intermediate, f2: (a1: Intermediate) => Out): (a1: In)=> Out works for two functions with the first having one input argument. I'm not sure how to extend the definition to work in all cases. My attempt can support

Sort Json Array with LoDash

由 不问归期 提交于 2019-12-01 01:47:11
问题 I have a JSON array whose general structure is like this: var json = [ { key: 'firstName', value: 'Bill' }, { key: 'lastName', value: 'Mans' }, { key: 'phone', value: '123.456.7890' } ]; In reality, there will be a lot more key/value pairs. Either way, I'm trying to sort this array by the key value using Lodash. Currently, I'm trying the following: _.map(_.sortBy(json, key), _.values); However, that causes an error that says: [ReferenceError: key is not defined] I suspect its because key is

webpack

由 雨燕双飞 提交于 2019-12-01 00:56:57
title date categories Webpack 2018-08-08 10:38:04 +0800 Webpack 概念^1 At its core, webpack is a static module bundler for modern JavaScript applications. When webpack processes your application, it internally builds a dependency graph which maps every module your project needs and generates one or more bundles. 作用 在 getting-started 说得很清楚 传统的html与静态文件结构类似 project webpack-demo |- package.json + |- index.html + |- /src + |- index.js src/index.js function component() { let element = document.createElement('div'); // Lodash, currently included via a script, is required for this line to work element

Sort array of JavaScript objects by property value [duplicate]

由 懵懂的女人 提交于 2019-11-30 21:23:07
问题 This question already has answers here : Sorting nested arrays of objects by date (3 answers) Closed 5 years ago . I have an array of JavaScript objects. My array is defined like this: var myObjects = [ { id: '1', username: 'bill.jones', active: true, createdon: '03/29/2014' }, { id: '2', username: 'woohoo', active: true, createdon: '03/28/2014' }, { id: '3', username: 'someuser', active: true, createdon: '03/30/2014' } ]; This array is actually dynamically populated. Still, I need to sort

Fastest method for testing a fixed phone number pattern

由 一世执手 提交于 2019-11-30 21:19:51
So, the challenge is that we are trying to detect if a string matches a fixed phone number pattern, this is a simple string pattern. The pattern is: ddd-ddd-dddd Where "d "represents a decimal digit and the minus symbol represents itself, "-" The patterns that are currently used for testing are, but can be increased if it is felt that there are not enough patterns to debunk an incorrect format. "012-345-6789" "0124-345-6789" "012-3456-6789" "012-345-67890" "01a-345-6789" "012-34B-6789" "012-345-678C" "012" The goal , the answer that I seek, is to find the method that executes the fastest to

How to transform object into sorted array by Lodash

由 我的未来我决定 提交于 2019-11-30 21:00:33
问题 How to transform {2:'b',3:'c',1:'a'} into [{1:'a'},{2:'b'},{3:'c'}] by lodash? 回答1: It's fairly trivial using Object.keys + Array.map , you really don't need lodash: const obj = {2:'b',3:'c',1:'a'}; const arr = Object.keys(obj).map(key => ({ [key]: obj[key] })) console.log(arr) Regarding the lack of a sort function, the above code is exploiting the fact that numerically indexed Object keys are (per the spec) stored sequentially. Check the order for yourself: console.log({2:'b',3:'c',1:'a'})
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