kdabir

// saving from url to a file (append)
new File("output.xml") << new URL ("http://some.url/some/path.xml").getText()

eliotsykes

package com.jetbootlabs.services

/*
 * Truncates H2 tables mapped by the domainClasses variable. Useful for cleaning up test data.
 * 
 * Temporarily disables referential integrity to avoid constraint violation errors when 
 * deleting records.
 * 
 * Inspired by Luke Daley's blog post on how to do this in MySQL:
 * http://ldaley.com/post/398082618/brute-force-fixture-cleanup-in-grails

digitaljhelms

The scenario

Your repository has two commits:

$ git log --oneline
957fbfb No, I am your father.
9bb71ff A long time ago in a galaxy far, far away....

gist:3910584

import java.io.BufferedReader;
import java.io.File;
import java.io.FileReader;
import java.util.Date;
import java.util.HashMap;
import java.util.LinkedList;
import java.util.List;
import java.util.Map;

olivierobert

/** Within the controller method **/

// If this is an ajax request, then return a JSON string
if ( $this->input->is_ajax_request() ):
  $this->output->set_content_type('application/json');
  $this->output->set_output( json_encode($data) );
endif;

aeischeid

package gvl

import grails.converters.JSON

class ErrorController {

	// Forbidden
	def error403() {
		withFormat {
			html { render(view: 'error403') }

willurd

Each of these commands will run an ad hoc http static server in your current (or specified) directory, available at http://localhost:8000. Use this power wisely.

Discussion on reddit.

Python 2.x

$ python -m SimpleHTTPServer 8000

jbub

git rebase --interactive HEAD~2

#  we are going to squash c into b 
pick b76d157 b
pick a931ac7 c

# squash c into b
pick b76d157 b
s a931ac7 c

mobilemind

# delete local tag '12345'
git tag -d 12345
# delete remote tag '12345' (eg, GitHub version too)
git push origin :refs/tags/12345
# alternative approach
git push --delete origin tagName
git tag -d tagName

hartleybrody

Javascript has two kinds of scope:

1. Local (inside a function)
2. Global (outside a function)

The var Keyword

• Using the var keywords creates the variable in the current scope
  • If the current scope is global, then var is unnecessary (see below)
  • If the current scope is local, then you’re creating a local variable in the current scope
• If you don’t use var, then Javascript goes up the “scope chain” to see if it’s already been declared