How to change visual studio code settings

Question

I am trying to changes visual studio code settings.json but it is not working. I have updated this in C:\Users\Userid\AppData\Roaming\Code\User\settings.json but not working. How to edit settings.json file in vs code?

{
    "css.experimental.customData": ["./css.json"],
    "json.schemas": [ 
        {
            "fileMatch": ["/css.json"],
            "url": "https://raw.githubusercontent.com/Microsoft/vscode-css-languageservice/master/docs/customData.schema.json"
        }
    ]
}

Answer 1

VSCode's settings are split into 2 categories: User and Workspace.

User settings

Settings that apply globally to any instance of VS Code you open.

You can edit these settings by pressing ctrl+, It should open to the User Settings tab. If it doesn't, click the User Settings tab to edit user settings. Note that these settings will affect all projects that you open using VSCode.

VSCode settings pane with User Settings tab open

Editing JSON schemas

The VSCode settings page does not allow direct editing of JSON Schemas. To edit JSON schema settings:

1. Search JSON schemas in the VSCode settings page
2. Click "edit in settings.json"
3. Edit settings
4. Done!

JSON schema setting in VSCode

Alternatively;

Workspace settings

Settings stored inside your workspace and only apply when the workspace is opened.
Workspace settings override user settings.

To edit workspace settings, follow steps for user settings, except click the Workspace Settings tab instead. Note that workspace settings will override user settings

css.experimental.customData

You should put your css.json file in .vscode.

projectRoot/.vscode/css.json

{
  "version": 1,
  "pseudoElements": [
    { "name": "::bar", "description": "Foo pseudo elements" }
  ]
}

projectRoot/.vscode/settings.json

{
  "css.experimental.customData": ["./.vscode/css.json"],
  "json.schemas": [{
    {
      "fileMatch": ["css.json"],
      "url": "https://raw.githubusercontent.com/Microsoft/vscode-css-languageservice/master/docs/customData.schema.json"
    }
  ]
}

Note: a reload is required to apply changes after editing css.json.

You can also apply the above instructions for html.json