Scott Teaches Wes Svelte and Sapper

Syntax - Tasty Web Development Treats - En podkast av Wes Bos & Scott Tolinski - Full Stack JavaScript Web Developers

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In this episode of Syntax, Scott teaches Wes about Svelte and Sapper — general premise, best practices, and more!

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Show Notes

03:14 - General premise

  • Sapper compiles away, removing framework code from build
  • Component & Props based
  • Easy reactivity
  • Built-in tools like animation
  • Template-based

07:57 - Svelte 101

  • .svelte files
  • Files can include 
       
    The answer is {answer}

    20:08 - Template logic

    • If statements
      {#if user._id}
      {/if}

    • Loops
      {#each cats as kittens}

    • Promise tags

     {#await promise}     
    ...waiting
     {:then number}     
    The number is {number}
     {:catch error}     
    {error.message}
     {/await}

    23:12 - Events

    • On directive
    • Functions can also be inline
    • Modifiers

    26:11 - Baked-in goodies

    • Animation
    • Dimensions
     
    {text}
    • Lifecycle methods
    • Advanced State Via Stores
      • A store is simply an object with a subscribe method that allows interested parties to be notified whenever the store value changes.
    • import { writable } from ‘svelte/store’;
    • export const count = writable(0);
    • count.update(0)
    • Slots
    • React helmet like stuff, ie

    36:39 - Sapper

    • Similar to Next.js
    • Folder routes
    • Static export with all of the good stuff like service workers and preloading

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