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@paulirish
paulirish / rAF.js
Last active November 18, 2025 04:17
requestAnimationFrame polyfill
// http://paulirish.com/2011/requestanimationframe-for-smart-animating/
// http://my.opera.com/emoller/blog/2011/12/20/requestanimationframe-for-smart-er-animating
// requestAnimationFrame polyfill by Erik Möller. fixes from Paul Irish and Tino Zijdel
// MIT license
(function() {
var lastTime = 0;
var vendors = ['ms', 'moz', 'webkit', 'o'];
@gr2m
gr2m / account_dreamcode.js
Last active May 7, 2022 08:22
Imagine the typical backend tasks for user authentication would exist right in the browser. How would the code look like? This is what I came up with. Forks & comments much appreciated! #nobackend #dreamcode
// sign up
account.signUp('[email protected]', 'secret');
// sign in
account.signIn('[email protected]', 'secret');
// sign in via oauth
account.signInWith('twitter');
// sign out
@gr2m
gr2m / store.dreamcode.js
Last active February 23, 2020 00:03
Imagine saving and finding user data would work right in the browser, persistent and synchronised. How would the code look like? This is what I came up with. Forks & comments much appreciated! #nobackend #dreamcode
// add a new object
var type = 'note';
var attributes = {color: 'red'};
store.add(type, attributes)
.done(function (newObject) {});
.fail(function (error) {});
// update an existing object
var type = 'note';
var id = 'abc4567';
@gr2m
gr2m / share_dreamcode.js
Last active August 29, 2016 09:01
Imagine you could share user data with JavaScript right in the browser. How would the code look like? This is what I came up with. Forks & comments much appreciated! (see also: https://gist.github.com/gr2m/5463475) #nobackend #dreamcode
// add a new share
share = new Share()
// grant / revoke access
share.grantReadAccess()
share.grantWriteAccess()
share.revokeReadAccess()
share.revokeWriteAccess()
share.grantReadAccess('[email protected]')
share.revomeWriteAccess(['[email protected]', '[email protected]'])
@gr2m
gr2m / convert_dreamcode.js
Last active August 29, 2016 09:01
Imagine you could convert all kind of things to all kind of different things, e.g. taking a screenshot of a dom element or converting another website to a screenshot. Forks & comments much appreciated! #nobackend #dreamcode
// convert a dom element to a PDF and download it
convert( $('.invoice') ).to( 'invoice.pdf' ).download()
// alternatively
download( convert( $('.invoice') ).to( 'invoice.pdf' ) )
// convert another website to a png and show it on the page
convert( 'http://exam.pl/page' ).toImage().then( $('.screenshots').append )
// attach a file to an email
@gr2m
gr2m / payments_dreamcode.js
Last active April 29, 2024 19:17
Imagine you could purchase items from your store, with pure JavaScript in the browser. How would it look like? Here's what I came up with. Forks & comments much appreciated! #nobackend #dreamcode
// purchase a product with a credit card
purchase('productId')
.using( {
cc: "4556934156210213",
valid: "2016-10",
csc: "123"
} )
// purchase a product with paypal
purchase('productId')
@gr2m
gr2m / control_devices.dreamcode.js
Last active August 29, 2016 09:01
Imagine you could control other devices with a simple JavaScript API, right from your browser.
// Ask the coffee machine at IP 192.168.2.2 to do its job
device('192.168.2.2')
.do( 'coffee' )
.then( wakeMeUpCallback )
// turn all lights on
device.findAll('light').do('turnOn')
@wintercn
wintercn / local.md
Created July 21, 2013 14:45
浅谈代码的局部性

我是JS中"就近声明"以及"允许多次var声明"的拥护者。

我持这样观点源自我对易读性的追求。

看一段代码：

function aFunc() {
    for(var i = 0; i < 100; i++) {
 doSth(i);
@justjavac
justjavac / img2txt.js
Last active December 9, 2021 06:46
img2txt：基于canvas的图片转字符画工具
var cv = document.getElementById('cv');
var c = cv.getContext('2d');
var txtDiv = document.getElementById('txt');
var fileBtn = document.getElementById("up-button");
var img = new Image();
img.src = 'a.jpg';
img.onload = init; // 图片加载完开始转换
fileBtn.onchange = getImg;
// 根据灰度生成相应字符
@gaearon
gaearon / combining.js
Created June 3, 2015 18:03
Combining Stateless Stores
// ------------
// counterStore.js
// ------------
import {
INCREMENT_COUNTER,
DECREMENT_COUNTER
} from '../constants/ActionTypes';
const initialState = { counter: 0 };