René's URL Explorer Experiment

{"@context":"https://schema.org","@type":"DiscussionForumPosting","headline":"@attr boolean/number setter function called with an empty string (v2-beta)","articleBody":"This is maybe related to #117, but not 100% sure on that.\r\n\r\nWith a component defined like this:\r\n\r\n```typescript\r\nimport { controller, attr } from '@github/catalyst'\r\n\r\n@controller\r\nclass TestComponentElement extends HTMLElement {\r\n\r\n  @attr get booleanProp() {\r\n    return false\r\n  }\r\n  set booleanProp( _v: boolean ) {\r\n    console.dir( `booleanProp type: ${ typeof _v }` )\r\n    console.dir( `booleanProp value: '${ _v }'` )\r\n  }\r\n\r\n  connectedCallback() {\r\n    this.booleanProp = true\r\n  }\r\n\r\n}\r\n```\r\n\r\nand html like this (note the lack of an initial `boolean-prop` value):\r\n\r\n```html\r\n\u003ctest-component\u003e\u003c/test-component\u003e\r\n```\r\n\r\nI get these log messages:\r\n```\r\nbooleanProp type: boolean\r\nbooleanProp value: 'true'\r\nbooleanProp type: string\r\nbooleanProp value: ''\r\n```\r\n\r\nChanging the html to include an initial value like this:\r\n\r\n```html\r\n\u003ctest-component boolean-prop='anything'\u003e\u003c/test-component\u003e\r\n```\r\n\r\nget's rid of that final empty string call:\r\n\r\n```\r\nbooleanProp type: boolean\r\nbooleanProp value: 'true'\r\n```\r\n\r\nMaybe this is a limitation? Hopefully this isn't another ghost bug, sorry about the last one 🫣\r\n","author":{"url":"https://github.com/ryecroft","@type":"Person","name":"ryecroft"},"datePublished":"2022-10-30T11:11:18.000Z","interactionStatistic":{"@type":"InteractionCounter","interactionType":"https://schema.org/CommentAction","userInteractionCount":2},"url":"https://github.com/295/catalyst/issues/295"}