ChuckJonas

class Greeting {

    constructor(name) {
        this.name = name;
    }

    get hello() {
        return Greeting.intro + this.name;
    }

ChuckJonas

<apex:page showHeader="false" sidebar="false" applyBodyTag="false">
<header>
    <apex:outputPanel layout="none" rendered="{!$Label.Toggle_Local_Dev == '1'}">
        <apex:stylesheet value="https://localhost:8080/statictesting.resource/styles.css"/>
    </apex:outputPanel>

    <apex:outputPanel layout="none" rendered="{!$Label.Toggle_Local_Dev != '1'}">
        <apex:stylesheet value="{!URLFOR($Resource.StaticTesting, 'styles.css')}"/>
    </apex:outputPanel>
</header>

ChuckJonas

 //replace with the id of uploaded image
 ProductCreator.createProduct('[REPLACE]');

ChuckJonas

enum CreatureKind {
  Dog = "Dog",
  Wolf = "Wulf",
  Cat = "Cat",
  Tiger = "Tiger",
}

interface Barker {
  bark: () => string;
}

ChuckJonas

//an alternate (and perhaps better approach)
interface IWeightedItem{
  weight: number
}

interface Grade extends IWeightedItem{
  score: number;
}

interface Product extends IWeightedItem{

ChuckJonas

/* MERGING */
interface Foo{
  kungfoo: string
}

interface ExtraFooy extends Foo{
  tofu: string;
}

interface Bar{

ChuckJonas

interface Foo{
  twittle: string;
  doBarStuff(b: Bar): number;
  fooOptional?: number
}

interface Bar{
  one: number;
  two: string;
}

ChuckJonas

<apex:page showHeader="false" sidebar="false" standardStylesheets="false">
    <script type="text/javascript">
      //global injects
      const __ACCESSTOKEN__ = '{!$Api.Session_ID}';
    </script>

    <div id="root"></div>

    <script type='text/javascript' src="{!URLFOR($Resource.quote, 'vendors.js')}"></script>
    <script type='text/javascript' src="{!URLFOR($Resource.quote, 'app.js')}" ></script>

ChuckJonas

let accId = 'blah';
let accounts = await Account.retrieve(
  `SELECT ${generateSelect(Object.values(Account.FIELDS))},
          (
            SELECT Owner.Id, Owner.Name
            FROM ${Account.FIELDS.contacts.apiName}
          ) 
          FROM Account 
          WHERE Id = '${accId}'`
);

ChuckJonas

{
  "auth": {
    "username": "my-dev"
  },
  "sObjects": [
    "Account",
    "User",
    {
      "apiName": "Contact",
      "fieldMappings": [