Edward Zhou edwardjzhou

🎯

Focusing

webdev

edwardjzhou / connect.js

Created May 19, 2020 14:26 — forked from gaearon/connect.js

connect.js explained

	// connect() is a function that injects Redux-related props into your component.
	// You can inject data and callbacks that change that data by dispatching actions.
	function connect(mapStateToProps, mapDispatchToProps) {
	// It lets us inject component as the last step so people can use it as a decorator.
	// Generally you don't need to worry about it.
	return function (WrappedComponent) {
	// It returns a component
	return class extends React.Component {
	render() {
	return (

edwardjzhou / protips.js

Created May 16, 2020 15:00 — forked from nolanlawson/protips.js

Promise protips - stuff I wish I had known when I started with Promises

	// Promise.all is good for executing many promises at once
	Promise.all([
	promise1,
	promise2
	]);

	// Promise.resolve is good for wrapping synchronous code
	Promise.resolve().then(function () {
	if (somethingIsNotRight()) {
	throw new Error("I will be rejected asynchronously!");

edwardjzhou / protips.js

Created May 16, 2020 15:00 — forked from nolanlawson/protips.js

Promise protips - stuff I wish I had known when I started with Promises

	// Promise.all is good for executing many promises at once
	Promise.all([
	promise1,
	promise2
	]);

	// Promise.resolve is good for wrapping synchronous code
	Promise.resolve().then(function () {
	if (somethingIsNotRight()) {
	throw new Error("I will be rejected asynchronously!");