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window.manifest = {
  "name": "Codeskulptor Autosave",
  "icon": "../../icon48.png",
  "settings": [
    {
      "tab": "Main settings",
      "group": "Frequency settings",
      "name": "freq",
      "type": "slider",
      "label": "Frequency in minutes:",

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var settings = new Store("settings", {
    "freq": 3
});

chrome.extension.onRequest.addListener(
	function(request, sender, sendResponse) {
		chrome.pageAction.show(sender.tab.id);
		sendResponse(settings.toObject());
	}
);

Swader

// Paul Irish dissects jQuery's source code and explains some sexy practices and pitfalls. Here's a summary.

// This pattern is a self-executing anonymous function. It helps minification, faster scope access to document and eliminates the asshole effect where someone writes undefined = true in your JS
(function(window, document, undefined){ 
    /*... code here ...*/ 
})(this, document);

// In short, the self calling pattern is as follows:
(function f() {})();
// or with arguments

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{
	"name": "DeSkin",
	"version": "0.9",
	"manifest_version" : 2,
	"description": "Hides Vevo ads from around Youtube videos",
	"background" : { "page" : "background.html" },
	"page_action" :
	{
		"default_icon": {
			"19": "icons/19.png",

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chrome.extension.onMessage.addListener(
  function(request, sender, sendResponse) {
  	chrome.pageAction.show(sender.tab.id);
    sendResponse({});
  });

Swader

// These are the elements that get force-fed ad styles
var ids = new Array("watch-headline-show-title", "watch-headline-title", "content");

// Cache the array count to get the fastest looping
var idsCount = ids.length;

// Loop through every one of those IDs and..
while(idsCount--) {
	// Fetch the element by current ID
	var element = document.getElementById(ids[idsCount]);

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<?php
$aArray = array();
$aArray['someKey'];
?>

//  Notice: Undefined index: someKey in ...

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<h1>Operation completed</h1>

<?php 

echo @$this->aMessages['error'];
echo '<hr />';
echo $this->aMessages['status'];
echo '<hr />';

// ...

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// $oView = ... our view object

if (/* some expression that signifies an error */) {
    $aMessages['error'] = 'Error no.2 occurred, contact developer!'; 
}

$aMessages['status'] = 'Finished operation';

$oView->aMessages = $aMessages;

Swader

function myErrorHandler($errno, $errstr, $errfile, $errline)
{
    if (!(error_reporting() & $errno)) {
        // This error code is not included in error_reporting
        return;
    }
    echo "<b>ERROR!</b> [$errno] $errstr<br />\n";
    echo "  Fatal error on line $errline in file $errfile";
    echo ", PHP " . PHP_VERSION . " (" . PHP_OS . ")<br />\n";
    echo "Aborting...<br />\n";