loilo

/**
 * Export all data from an IndexedDB database
 *
 * @param {IDBDatabase} idbDatabase The database to export from
 * @return {Promise<string>}
 */
export function exportToJson(idbDatabase) {
  return new Promise((resolve, reject) => {
    const exportObject = {}
    if (idbDatabase.objectStoreNames.length === 0) {

codediodeio

export const print = (v) => {
  const el = document.createElement('h3');
  el.innerText = '🔵 ' + v;
  document.body.appendChild(el);
} 

doggy8088

Angular 18 開發環境說明

為了能讓大家能夠順利的建立起 Angular 18 開發環境，以下是需要安裝的相關軟體與安裝步驟與說明。

[ 作業系統 ]

• Windows 10 以上版本
• Mac OS X 10.6 以上版本

btroncone

RxJS 5 Operators By Example

⚠️ UPDATE: I have moved the contents of this gist plus more to http://www.learnrxjs.io and https://github.com/btroncone/learn-rxjs. For expanded examples, explanations, and resources, please check out this new location!

A complete list of RxJS 5 operators with easy to understand explanations and runnable examples.

Table of Contents

• buffer
• bufferCount
• bufferTime

parmentf

Inspired by dannyfritz/commit-message-emoji

See also gitmoji.

Commit type	Emoji
Initial commit	🎉 :tada:
Version tag	🔖 :bookmark:
New feature	✨ :sparkles:
Bugfix	🐛 :bug:

remojansen

function logClass(target: any) {
 
  // save a reference to the original constructor
  var original = target;
 
  // a utility function to generate instances of a class
  function construct(constructor, args) {
    var c : any = function () {
      return constructor.apply(this, args);
    }

paulirish

What forces layout / reflow

All of the below properties or methods, when requested/called in JavaScript, will trigger the browser to synchronously calculate the style and layout*. This is also called reflow or layout thrashing, and is common performance bottleneck.

Generally, all APIs that synchronously provide layout metrics will trigger forced reflow / layout. Read on for additional cases and details.

Element APIs

Getting box metrics

• elem.offsetLeft, elem.offsetTop, elem.offsetWidth, elem.offsetHeight, elem.offsetParent

jpetitcolas

/**
 * Uncamelize a string, joining the words by separator character.
 * @param string Text to uncamelize
 * @param string Word separator
 * @return string Uncamelized text
 */
function uncamelize(text, separator) {
 
  // Assume separator is _ if no one has been provided.
  if(typeof(separator) == "undefined") {