DEV Community: sasakihir

fix .eslint.js

sasakihir — Thu, 03 Dec 2020 07:21:01 +0000

I fixed .eslint.js as below.
I also changed new linecode of .eslint.js from LF to CRLF (I'm using Windows) at the bottom botton.

module.exports = {
  env: {
    browser: true,
    es2021: true,
    node: true
  },
  extends: [
    "standard"
  ],
  parserOptions: {
    ecmaVersion: 12
  },
  rules: {
    indent: [
      "error",
      2,
      { SwitchCase: 1 }
    ],
    "linebreak-style": [
      "error",
      "windows"
    ],
    quotes: [
      "error",
      "double"
    ],
    semi: [
      "error",
      "always"
    ],
    "no-unused-vars": [
      "error",
      {
        vars: "all",
        args: "none"
      }
    ],
    "no-console": [
      "off"
    ]
  }
};

ESLint setting

sasakihir — Wed, 02 Dec 2020 07:17:20 +0000

day2

PS C:\Projects\weblog> .\node_modules\.bin\eslint --init
√ How would you like to use ESLint? · style       
√ What type of modules does your project use? · none
√ Which framework does your project use? · none
√ Does your project use TypeScript? · No / Yes
√ Where does your code run? · browser, node
√ How would you like to define a style for your project? · guide
√ Which style guide do you want to follow? · standard
√ What format do you want your config file to be in? · JavaScript
Checking peerDependencies of eslint-config-standard@latest
The config that you've selected requires the following dependencies:

eslint-config-standard@latest eslint@^7.12.1 eslint-plugin-import@^2.22.1 eslint-plugin-node@^11.1.0 eslint-plugin-promise@^4.2.1
√ Would you like to install them now with npm? · No / Yes
Installing eslint-config-standard@latest, eslint@^7.12.1, eslint-plugin-import@^2.22.1, eslint-plugin-node@^11.1.0, eslint-plugin-promise@^4.2.1
npm WARN weblog@1.0.0 No description
npm WARN weblog@1.0.0 No repository field.

+ eslint@7.14.0
+ eslint-plugin-import@2.22.1
+ eslint-plugin-node@11.1.0
+ eslint-config-standard@16.0.2
+ eslint-plugin-promise@4.2.1
added 71 packages from 47 contributors, updated 1 package and audited 183 packages in 27.729s

22 packages are looking for funding
  run `npm fund` for details

found 0 vulnerabilities

Successfully created .eslintrc.js file in C:\Projects\weblog
PS C:\Projects\weblog>

.eslintrc.js was created as below.

module.exports = {
  env: {
    browser: true,
    es2021: true,
    node: true
  },
  extends: [
    'standard'
  ],
  parserOptions: {
    ecmaVersion: 12
  },
  rules: {
  }
}

node.js start

sasakihir — Tue, 01 Dec 2020 11:53:36 +0000

I bought the course to create web application by node.js and express (mejor application framework on node.js) course on Udemy.

*Udemy had a discount sale called cyber friday.

I started Node.js udemy course.
I installed Visual Studio Code.

I had installed node.js yet. Because I had tried to create some web application for me. But I don't know how I can create it on node.js. So, I bought node.js and express course on udemy and started to learn it. My goal is to create the typing application for me.

[19c Multitenant] Automatically launch an instance

sasakihir — Fri, 20 Nov 2020 23:20:36 +0000

Seems to be the first article about Oracle on dv.io
Enable autostart with oratab

# vi /etc/oratab
orclcdb:/opt/oracle/product/19c/dbhome_1:Y

Create a unit definition file

# cd /etc/systemd/system
# vi dbora.service
[Unit]
Description=Oracle Database Service
After=network.target

[Service]
Type=forking
User=oracle
Group=dba
ExecStart=/opt/oracle/product/19c/dbhome_1/bin/dbstart /opt/oracle/product/19c/dbhome_1
ExecStop=/opt/oracle/product/19c/dbhome_1/bin/dbstart /opt/oracle/product/19c/dbhome_1

[Install]
WantedBy=multi-user.target

Reload the daemon and start the service

 systemctl daemon-reload
# systemctl enable dbora
Created symlink from /etc/systemd/system/multi-user.target.wants/dbora.service to /etc/systemd/system/dbora.service.
# systemctl start dbora
#

Oracle has started properly

# su - oracle
#
# sqlplus / as sysdba
SQL> select instance_name, status from v$instance;

INSTANCE_NAME    STATUS
---------------- ------------
orclcdb          OPEN