René's URL Explorer Experiment

{"@context":"https://schema.org","@type":"DiscussionForumPosting","headline":"Literal String Union Autocomplete","articleBody":"Autocomplete works for literal string unions, but adding a union of `string` negates autocomplete entirely. This has been brought up before but I believe there is enough value in this feature to be reconsidered.  \r\n\r\nMy use case is to have a union of string literals for several colors, but also allow hex codes without having to add 16.7 million string literals.\r\n\r\n**TypeScript Version:**  3.4.0-dev.20190202\r\n\r\n**Search Terms:** Literal string union autocomplete\r\n\r\n**Code**\r\n\r\n```ts\r\ninterface Options {\r\n  borderColor: 'black' | 'red' | 'green' | 'yellow' | 'blue' | string\r\n};\r\n\r\nconst opts: Options = {borderColor: 'red'};\r\n```\r\n\r\n**Expected behavior:**\r\n\r\n![image](https://user-images.githubusercontent.com/11617455/52225250-918e1700-286f-11e9-8ed2-9ca7fe5b0b70.png)\r\n\r\n**Actual behavior:**\r\n\r\n![image](https://user-images.githubusercontent.com/11617455/52225328-bd110180-286f-11e9-8b5d-62d516c96564.png)\r\n\r\n**Playground Link:** https://stackblitz.com/edit/typescript-bwyyab\r\n\r\n**Related Issues:** #12687 #13614\r\n","author":{"url":"https://github.com/MrTarantula","@type":"Person","name":"MrTarantula"},"datePublished":"2019-02-04T17:44:40.000Z","interactionStatistic":{"@type":"InteractionCounter","interactionType":"https://schema.org/CommentAction","userInteractionCount":70},"url":"https://github.com/29729/TypeScript/issues/29729"}