Global snippets were added in v1.10 Feb., 2018 see global snippets
VS Code now supports global snippets meaning snippets that aren't scoped to a single language but can target any kind of files. Using the Preferences: Configure User Snippets command, select the New Global Snippets file... option which will open a .code-snippets file for new snippets. Use the scope attribute to list the languages that are targeted by a snippet. For instance, the snippet below can add a copyright header for JavaScript and TypeScript files:
From the documentation:
"JS & TS Stub": {
"scope": "javascript,typescript",
"prefix": "stub",
"body": [
"/*--------------------------------------------------------------",
" * Copyright (c) Your Corporation. All rights reserved.",
" * Licensed under the MIT License.",
" *-------------------------------------------------------------*/",
"",
"'use strict';",
"",
"$0"
],
"description": "Insert Copyright Statement"
}