Tim Hemmer themmer

Frontend Development

Attention: the list was moved to

This page is not maintained anymore, please update your bookmarks.

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).

	-- Remove the history from
	rm -rf .git

	-- recreate the repos from the current content only
	git init
	git add .
	git commit -m "Initial commit"

	-- push to the github remote repos ensuring you overwrite history
	git remote add origin [email protected]:<YOUR ACCOUNT>/<YOUR REPOS>.git

	import React, { Component } from 'react';

	export default function withPropsChecker(WrappedComponent) {
	return class PropsChecker extends Component {
	componentWillReceiveProps(nextProps) {
	Object.keys(nextProps)
	.filter(key => {
	return nextProps[key] !== this.props[key];
	})
	.map(key => {