Support the {@const} tag

[TheOnlyTails]

The {@const} tag, which allows declaration of constants inside markup, is soon to be merged into the main Svelte repo: sveltejs/svelte#6413

Some opportunities this can have:

• TypeScript support
• Auto-completion support in markup (including variables declared with {@const} in auto-completion)
• Support for Navigate-to-declaration & Find Usages
  (you get the point, it should behave like any other variable declared with const)

https://svelte.dev/docs#template-syntax-const

The language tools PR has already been merged: sveltejs/language-tools#1319
The RFC describing the syntax: https://github.com/sveltejs/rfcs/blob/master/text/0007-markup-constants.md

Update: {@const} has now been officially released in Svelte 3.46.

[risalfajar]

will this be supported soon?

[cristianvogel]

The plugin really needs {@const} support to be complete.
https://svelte.dev/docs#template-syntax-const

[risalfajar]

@tomblachut is there any plan for this? It has been 9 months :(

[risalfajar]

Update: Issue tracking has been moved from GitHub to YouTrack

see https://youtrack.jetbrains.com/issue/WEB-55903/Svelte-const-tag-causes-syntax-errors