Andrew Chavez achavez

ONA DFW coding exercises

HTML exercise 1

Format the article below with HTML.

<html>
	<head>
		<title></title>

Installing an old version of a Homebrew formula

Let's say, like me, you accidentally upgraded PostgresQL or PostGIS or something super important and now you need to go back in time and install the previous version.

Find the commit of the old version that you want to install by looking through the Formula/ directory in the homebrew-core repo: https://github.com/Homebrew/homebrew-core/commits/master/Formula/ (If the above doesn't work, you'll need to clone the homebrew-core repo to your machine and run git log master -- Formula/<formula name>.rb).
Unlink the existing (newer) version:
```
$ brew unlink <formula_name>
```

	var layers = ['water', 'road'];
	window.renderTiles = function(d) {
	var svg = d3.select(this);

	this._xhr = d3.request("http://maps.dallasnews.com/" + d[2] + "/" + d[0] + "/" + d[1] + ".pbf").responseType('arraybuffer').get(function(error, json) {
	if(error) return console.error(error);

	var tile = new VectorTile( new Pbf( new Uint8Array(json.response) ) );
	var extents = 4096;

	var layers = ['water', 'road'];
	window.renderTiles = function(d) {
	var svg = d3.select(this);

	this._xhr = d3.request("http://maps.dallasnews.com/" + d[2] + "/" + d[0] + "/" + d[1] + ".pbf").responseType('arraybuffer').get(function(error, json) {
	if(error) return console.error(error);

	var tile = new VectorTile( new Pbf( new Uint8Array(json.response) ) );
	var extents = 4096;