nvm install success but reopen node version still the old version

[qiuyaofan]

• Operating system and version:

• nvm debug output:
  

$SHELL: /bin/bash
$NVM_DIR: '$HOME/.nvm'
$PREFIX: ''
$NPM_CONFIG_PREFIX: ''
nvm current: system
which node: /usr/local/bin/node
which iojs: 
which npm: /usr/local/bin/npm
npm config get prefix: /usr/local
npm root -g: /usr/local/lib/node_modules

• nvm ls output:

iojs-v3.3.1
         v8.3.0
         v8.4.0
->       system
node -> stable (-> v8.4.0) (default)
stable -> 8.4 (-> v8.4.0) (default)
iojs -> iojs-v3.3 (-> iojs-v3.3.1) (default)

• How did you install nvm? (e.g. install script in readme, homebrew):
  homebrew

• What steps did you perform?

admindeMacBook-Pro-2:node-server admin$ nvm ls
iojs-v3.3.1
     v8.3.0
     v8.4.0
->       system
node -> stable (-> v8.4.0) (default)
stable -> 8.4 (-> v8.4.0) (default)
iojs -> iojs-v3.3 (-> iojs-v3.3.1) (default)
admindeMacBook-Pro-2:node-server admin$ node -v
v6.9.5
admindeMacBook-Pro-2:node-server admin$ nvm use v8.4.0
Now using node v8.4.0 (npm v5.3.0)
admindeMacBook-Pro-2:node-server admin$ node -v
v8.4.0

• What happened?
  but when I reopen and run node -v,it return
  v6.9.5

• What did you expect to happen?
  return still v8.4.0

• Is there anything in any of your profile files (.bashrc, .bash_profile, .zshrc, etc) that modifies the PATH?
  maybe not

• If you are having installation issues, or getting "N/A", what does curl -I --compressed -v https://nodejs.org/dist/ print out?
  
  
  

[ljharb]

Run nvm alias default node?

[qiuyaofan]

return default -> node (-> v8.4.0),why still not change @ljharb can you help?

[ljharb]

@qiuyaofan hm, i'm confused. nvm alias default node should set your default node version to "node" which is short for "latest" - after that, and restarting your shell, that should be the node version available by default.

Separately. nvm is not supported whatsoever when installed via homebrew - can you brew uninstall it, and reinstall it properly with the curl script in the readme?

[qiuyaofan]

sorry ,I am stupid,it works!Thanks you! @ljharb

[ljharb]

np, glad it's working!