spider8

import { h, Component } from 'preact';


/** Creates a new store, which is a tiny evented state container.
 *  @example
 *    let store = createStore();
 *    store.subscribe( state => console.log(state) );
 *    store.setState({ a: 'b' });   // logs { a: 'b' }
 *    store.setState({ c: 'd' });   // logs { c: 'd' }
 */

spider8

Strings

String.prototype.*

None of the string methods modify this – they always return fresh strings.

• charAt(pos: number): string ^ES1

  Returns the character at index pos, as a string (JavaScript does not have a datatype for characters). str[i] is equivalent to str.charAt(i) and more concise (caveat: may not work on old engines).

spider8

Strings

String.prototype.*

None of the string methods modify this – they always return fresh strings.

• charAt(pos: number): string ^ES1

  Returns the character at index pos, as a string (JavaScript does not have a datatype for characters). str[i] is equivalent to str.charAt(i) and more concise (caveat: may not work on old engines).

spider8

// prettified version of what can be found here:
// https://en.wikibooks.org/wiki/Algorithm_Implementation/Strings/Longest_common_subsequence#JavaScript
function LCS(a, b) {
    var m = a.length,
        n = b.length,
        C = [],
        i,
        j;

    for (i = 0; i <= m; i++) C.push([0]);

spider8

/* eslint-disable no-unused-vars */
/* eslint-disable no-else-return */

// JSX constructor, similar to createElement()
export const h = (type, props, ...children) => {
	return {
		type,
		// Props will be an object for components and DOM nodes, but a string for
		// text nodes
		props,

spider8

export const h=(t,p,...c)=>({t,p,c,k:p&&p.key})
export const render=(e,d,t=d.t||(d.t={}),p,r,c,m,y)=>
  // arrays
  e.map?e.map((e,p)=>render(e,d,t.o&&t.o[p])):
  // components
  e.t.call?(e.i=render((render.c=e).t(Object.assign({children:e.c},e.p),e.s=t.s||{},t=>
    render(Object.assign(e.s,t)&&e,d,e)),t.i||d,t&&t.i||{}),d.t=t=e):(
  // create notes
  m=t.d||(e.t?document.createElement(e.t):new Text(e.p)),
  // diff props