nvm

I installed nvm n and now I keep getting “dyld: bad external relocation length”

a 夏天 提交于 2019-12-04 11:26:27
I installed nvm, n, using sudo and decided to test it out by downloading several versions of node on my system. When I tried to switch between the node versions I kept getting "Permissions denied." So I decided to sudo the command for switching between versions too. That's when all hell broke loose. I keep getting dyld:bad external relocation length I've tried to reboot my terminal with some hope that it would magically fix itself out. Alas, I was wrong.Thanks in Advance. Update 1 : I've tried to use npm to install yo and it gives me the same "dyld" prompt, along with the following: Trace/BPT

How to properly upgrade node using nvm

流过昼夜 提交于 2019-12-04 07:19:19
问题 Is it possible to upgrade node right in place, instead of manually installing the latest stable version? I have installed node.js version 5.0 with nvm, but now I want to update it to 5.4 . I'm trying to avoid having to manually reinstall all of my global packages ( e.g. by running npm install -g grunt-cli bower yo yoman-angular-generator blabla blablablabla ...). 回答1: This may work: nvm install NEW_VERSION --reinstall-packages-from=OLD_VERSION For example: nvm install 6.7 --reinstall-packages

深入浅出Node.js

梦想的初衷 提交于 2019-12-04 04:36:24
深入浅出Node.js 一直想致力于写一篇关于广义讲解Node.js系统的文章,苦于时间有限,资源有限。这篇文章是在结合自己的学习心得以及与行业大佬共同探讨下争对于熟练掌握JS语言后的广义Node.js.至于为什么叫作广义在后文会提到。希望看到这篇文章后可以激发大家对Node.js的学习兴趣,这篇文章的初衷就是致力于帮助大家可以走进Node.js世界。 简介: Node.js 就是运行在服务端的 JavaScript。 Node.js 是一个基于Chrome JavaScript 运行时建立的一个平台。 Node.js是一个事件驱动I/O服务端JavaScript环境,基于Google的V8引擎,V8引擎执行Javascript的速度非常快,性能非 常好。 底层选择用c++和v8来实现的 注意:广义的Node.js是指不掌握以底层C++技术以及V8知识,利用Node.js运行在服务端的JS特性完成操作,很多小伙伴会产生疑惑Node.js是什么,简单的来说:Node.js是解析器. 优势: RESTful API 这是NodeJS最理想的应用场景,可以处理数万条连接,本身没有太多的逻辑,只需要请求API,组织数据进行返回即可。它本质上只是从某个数据库中查找一些值并将它们组成一个响应。由于响应是少量文本,入站请求也是少量的文本,因此流量不高

Automatically switch to correct version of Node based on project

南楼画角 提交于 2019-12-04 03:19:22
Let's say I have 2 projects: example1: requires node version 0.12.1 example2: requires node version 0.10 Currently, when I cd into each project, I use nvm use <version> before running the application. Is there a way with node or nvm, to automatically switch to the needed version of node when I cd into each project? Install Automatic Node Version Switching ( avn ) and add .node-version file that specifies the version you'd like to use with project. It automatically detects and uses it via installed version manager such as nvm and n . You can add nvm command into package.json file "scripts": {

nodejs 基础篇整合

99封情书 提交于 2019-12-03 23:44:18
nodeJs 基础篇整合 最近有朋友也想学习nodeJs相关方面的知识,如果你是后端想接近前端,node作为一门跑在服务端的JS语言从这里入门再好不过了。如果你正好喜欢前端,想走的更高,走的更远。nodeJs同样也是不二之选。node的地位虽然在实战项目中运用的不是很多,但也不能否认它在处理高并发,服务端渲染,前端自动化方面的优势。总而言之。如果你是个自学能力很强的人。请来到这里学习。让我们一起去打开node的世界,游走于前端与服务端之间。你如果能掌握如下知识那么你的node基础功底将会十分强大。 简介: Node.js 就是运行在服务端的 JavaScript。 Node.js 是一个基于Chrome JavaScript 运行时建立的一个平台。 Node.js是一个事件驱动I/O服务端JavaScript环境,基于Google的V8引擎,V8引擎执行Javascript的速度非常快,性能非常好。 底层选择用c++和v8来实现的 优势:1. RESTful API 这是NodeJS最理想的应用场景,可以处理数万条连接,本身没有太多的逻辑,只需要请求API,组织数据进行返回即可。它本质上只是从某个数据库中查找一些值并将它们组成一个响应。由于响应是少量文本,入站请求也是少量的文本,因此流量不高,一台机器甚至也可以处理最繁忙的公司的API需求。 统一Web应用的UI层 目前MVC的架构

[掉坑] 记一次被宝塔坑的操作..

泄露秘密 提交于 2019-12-03 20:25:14
需求方直接甩手给我一个需求, 考虑之下, 采用了 node 来作为后端 koa + mongodb 真香 首先是在宝塔上安装 mongodb 将监听 ip 设置为 0.0.0.0 (不考虑 authorization ) 然后写一个测试登录的文件 const mongodb = require('mongoose') const { env: config } = require('./config') require('colors') const db = mongodb.connect(config.db, { useUnifiedTopology: true, useNewUrlParser: true }).then(r=> { console.log(`${ 'debug'.green }: MongoDB connected success❤️`.blue) }).catch(r=> { throw new Error(`${ 'debug'.red }: MongoDB connected fail😂`.red) }) 这个 mongoose 玩法还真是不同, 共享一个实例 代码写好了, 就到了部署到线上去, 开开心心的登录 ssh 打开宝塔后台安装 pm2 , 发现怎么都启动不了服务, 查看日志看到了 cat /tmp/panelExec.log export

Homebrew installs nvm but nvm can't be found afterwards?

旧街凉风 提交于 2019-12-03 18:20:42
问题 I'm using homebrew and oh-my-zsh on a fresh OSX 10.10.1 install. I got nvm via homebrew and then attempted to run it but says - zsh: command not found: nvm Any idea what the problem is? I was able to install and use git just fine... UPDATED 9/20/2019 As stated by more recent answers from DarkPurple141 and Elise van Looij. nvm doesn't appear to be compatible with homebrew . This is also stated in the official nvm-sh repo located here. Homebrew installation is not supported. If you have issues

Uninstalling the currently active version of node.js with nvm

不羁岁月 提交于 2019-12-03 12:39:39
On Ubuntu 16.04, I mistakenly used root to install nvm, and then to install node.js 8.8.1 via nvm. I also used nvm alias default 8.8.1 , thinking it would correct my error. Now I would like to: Remove the default alias Uninstall node 8.8.1 Uninstall npm 4.8.5, which came along with node Uninstall nvm Reinstall everything correctly for the right non-sudo user It looks like I've succeeded with the first part: # nvm unalias default Deleted alias default - restore it with `nvm alias "default" "8.8.1"` But nvm refuses to uninstall node 8.8.1, because it is the only version installed: # nvm

How can the default node version be set using NVM?

流过昼夜 提交于 2019-12-03 09:16:47
I have installed nvm (ubuntu with zsh shell) with two node version: v6.11.5 and v9.0.0 and the default version in nvm is the v9.0.0 Every time I need to change the node version $ nvm list v6.11.5 -> v9.0.0 system default -> node (-> v9.0.0) node -> stable (-> v9.0.0) (default) stable -> 9.0 (-> v9.0.0) (default) $ nvm v6 How could I change the nvm version default to define v6.11.5? (nvm maintainer here) nvm alias default 6.11.5 if you want it pegged to that specific version. You can also do nvm alias default 6 . Either way, you'll want to upgrade to the latest version of nvm (v0.33.11 as of

nvm —— Node版本管理工具

会有一股神秘感。 提交于 2019-12-03 07:00:31
nvm下载 下载地址 下载nvm-setup.zip文件 nvm安装 1.以管理员身份运行install.cmd文件,设置文件路径 root: C:\Users\Administrator\AppData\Roaming\nvm path: C:\Program Files\nodejs arch: 64 proxy: none 确保目录下有一个setting.txt文件,在命令行输入 nvm 回车看到nvm的版本号表示nvm安装成功 2.环境变量配置:点击我的电脑》属性》高级设置》环境变量》 a. 删除系统自带的nvm变量:NVM_HOME和NVM_SYMLINK b. 打开path:删除nvm自动添加的变量C:\nvm;C:\Program Files\nodejs c. 配置用户变量: NVM_HOME = C:\nvm NVM_SYMLINK = C:\nodejs Path = %NVM_HOME%;%NVM_SYMLINK% 配置完成保存 nvm配置 淘宝镜像 1.直接使用命令行方式: nvm node_mirror https://npm.taobao.org/mirrors/node/ nvm npm_mirror https://npm.taobao.org/mirrors/npm/ 2.修改setting.txt文件,添加以下两行: node_mirror: