Visual Studio Code: ‘deploy on save’ into source org.
Ctrl + Shift + P | enter “Setting” in box and select -> Preferences:Open User Settings
Expand Extensions. | Click on “Salesforce Feature…” | Click on “Edit in settings.json”
Add 👉 “salesforcedx-vscode-core.push-or-deploy-on-save.enabled”: true in the settings.json
Restart the VS CODE.
Now if you save the code it will automatically deploy code to your source org (authorized org).