elycruz

/**
 * Objective:  Create constraint validation error reporting types, and/or, structs to 
 * be used by constraint validation types. 
 */
use std::collections::{HashSet, HashMap};
use std::fmt;
use std::fmt::Debug;
use std::fmt::Display;
use std::error::Error;

elycruz

/// Demonstrates an approach for accepting different types of functions, with different lifetimes
///  as struct values.

type MyFn = dyn Fn();

struct ContainsFns<'a> {
    other_fn: &'a MyFn,
    fns: Option<Vec<&'a MyFn>>
}

elycruz

use std::fmt::{Display};
use std::borrow::Cow;

/// Represent some scalar values for test.
///
trait InputValue: Copy + Default + Display + PartialEq + PartialOrd {}

impl InputValue for isize {}
impl InputValue for usize {}
impl InputValue for &str {}

elycruz

elycruz

/**
 * Custom modal "backdrop" animation replacement, until `::backdrop` animations are supported.
 */
document.body.innerHTML = `
<style>
body {
    display: grid;
    place-content: center;
}

elycruz

/**
 * Single threaded "filters" patterns.
 */
use std::borrow::{Cow, Cow::*};

pub type Filter<'a, T> = &'a dyn Fn(Cow<'a, T>) -> Cow<'a, T>;

fn filter<'a>(filters: &'a [Filter<'a, str>], value: Cow<'a, str>) -> Cow<'a, str> {
    filters.iter().rfold(value, |agg, f| f(agg))
}

elycruz

use core::fmt::Formatter;
/**
 * The goal of this example is to show a way to have algebraic types and generics
 * represent a collection of structs that can each have their own types and
 * additionally be structurally different from each other.
 * 
 * Question:  Are there less "typeful"/verbose ways of acheiving the same this?
 */
use core::fmt::{Display, Debug};
use std::borrow::Cow;

elycruz

// Note: in real world example things would work slightly differntly:
// ----
const matSymStyleSheet = new CSSStyleSheet();

// Load css for custom 'x-icon' element - In realword scenario css can be loaded using import assertions, and/or,
// directly via app facilities (sass, webpack, etc.).
fetch('https://fonts.googleapis.com/css2?family=Material+Symbols+Outlined:opsz,wght,FILL,GRAD@20..48,100..700,0..1,-50..200')
  .then(res => res.text())
  .then(css => matSymStyleSheet.replace(`
${css.replace('.material-symbols-outlined', ':host .material-symbols-outlined')}

elycruz

document.body.innerHTML = `
  <style>
    html, body {
      margin: 0;
      padding: 0;
      font: normal 1rem Arial, Sans-serif;
    }
     dialog {
       margin: 0;
       padding: 0; 

elycruz

const {log} = console,
    
    groupContent = '.'.repeat(5).split('').reduce((agg, _, i) => {
        return agg + `<item>` + 
            `<title>Item ${i}</title>` +
        `</item>`;
    }, ''),
    
    docContent = `<group>${groupContent}</group>`,